diff options
Diffstat (limited to 'ffmpeg.c')
| -rw-r--r-- | ffmpeg.c | 3876 |
1 files changed, 3876 insertions, 0 deletions
diff --git a/ffmpeg.c b/ffmpeg.c new file mode 100644 index 0000000..077207f --- /dev/null +++ b/ffmpeg.c @@ -0,0 +1,3876 @@ +/* + * Copyright (c) 2000-2003 Fabrice Bellard + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * multimedia converter based on the FFmpeg libraries + */ + +#include "config.h" +#include <ctype.h> +#include <string.h> +#include <math.h> +#include <stdlib.h> +#include <errno.h> +#include <limits.h> +#include <stdint.h> + +#if HAVE_ISATTY +#if HAVE_IO_H +#include <io.h> +#endif +#if HAVE_UNISTD_H +#include <unistd.h> +#endif +#endif + +#include "libavformat/avformat.h" +#include "libavdevice/avdevice.h" +#include "libswresample/swresample.h" +#include "libavutil/opt.h" +#include "libavutil/channel_layout.h" +#include "libavutil/parseutils.h" +#include "libavutil/samplefmt.h" +#include "libavutil/fifo.h" +#include "libavutil/intreadwrite.h" +#include "libavutil/dict.h" +#include "libavutil/mathematics.h" +#include "libavutil/pixdesc.h" +#include "libavutil/avstring.h" +#include "libavutil/libm.h" +#include "libavutil/imgutils.h" +#include "libavutil/timestamp.h" +#include "libavutil/bprint.h" +#include "libavutil/time.h" +#include "libavutil/threadmessage.h" +#include "libavformat/os_support.h" + +#include "libavformat/ffm.h" // not public API + +# include "libavfilter/avcodec.h" +# include "libavfilter/avfilter.h" +# include "libavfilter/buffersrc.h" +# include "libavfilter/buffersink.h" + +#if HAVE_SYS_RESOURCE_H +#include <sys/time.h> +#include <sys/types.h> +#include <sys/resource.h> +#elif HAVE_GETPROCESSTIMES +#include <windows.h> +#endif +#if HAVE_GETPROCESSMEMORYINFO +#include <windows.h> +#include <psapi.h> +#endif + +#if HAVE_SYS_SELECT_H +#include <sys/select.h> +#endif + +#if HAVE_TERMIOS_H +#include <fcntl.h> +#include <sys/ioctl.h> +#include <sys/time.h> +#include <termios.h> +#elif HAVE_KBHIT +#include <conio.h> +#endif + +#if HAVE_PTHREADS +#include <pthread.h> +#endif + +#include <time.h> + +#include "ffmpeg.h" +#include "cmdutils.h" + +#include "libavutil/avassert.h" + +const char program_name[] = "ffmpeg"; +const int program_birth_year = 2000; + +static FILE *vstats_file; + +const char *const forced_keyframes_const_names[] = { + "n", + "n_forced", + "prev_forced_n", + "prev_forced_t", + "t", + NULL +}; + +static void do_video_stats(OutputStream *ost, int frame_size); +static int64_t getutime(void); +static int64_t getmaxrss(void); + +static int run_as_daemon = 0; +static int nb_frames_dup = 0; +static int nb_frames_drop = 0; +static int64_t decode_error_stat[2]; + +static int current_time; +AVIOContext *progress_avio = NULL; + +static uint8_t *subtitle_out; + +#define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass" + +InputStream **input_streams = NULL; +int nb_input_streams = 0; +InputFile **input_files = NULL; +int nb_input_files = 0; + +OutputStream **output_streams = NULL; +int nb_output_streams = 0; +OutputFile **output_files = NULL; +int nb_output_files = 0; + +FilterGraph **filtergraphs; +int nb_filtergraphs; + +#if HAVE_TERMIOS_H + +/* init terminal so that we can grab keys */ +static struct termios oldtty; +static int restore_tty; +#endif + +static void free_input_threads(void); + + +/* sub2video hack: + Convert subtitles to video with alpha to insert them in filter graphs. + This is a temporary solution until libavfilter gets real subtitles support. + */ + +static int sub2video_get_blank_frame(InputStream *ist) +{ + int ret; + AVFrame *frame = ist->sub2video.frame; + + av_frame_unref(frame); + ist->sub2video.frame->width = ist->sub2video.w; + ist->sub2video.frame->height = ist->sub2video.h; + ist->sub2video.frame->format = AV_PIX_FMT_RGB32; + if ((ret = av_frame_get_buffer(frame, 32)) < 0) + return ret; + memset(frame->data[0], 0, frame->height * frame->linesize[0]); + return 0; +} + +static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h, + AVSubtitleRect *r) +{ + uint32_t *pal, *dst2; + uint8_t *src, *src2; + int x, y; + + if (r->type != SUBTITLE_BITMAP) { + av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n"); + return; + } + if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) { + av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n"); + return; + } + + dst += r->y * dst_linesize + r->x * 4; + src = r->pict.data[0]; + pal = (uint32_t *)r->pict.data[1]; + for (y = 0; y < r->h; y++) { + dst2 = (uint32_t *)dst; + src2 = src; + for (x = 0; x < r->w; x++) + *(dst2++) = pal[*(src2++)]; + dst += dst_linesize; + src += r->pict.linesize[0]; + } +} + +static void sub2video_push_ref(InputStream *ist, int64_t pts) +{ + AVFrame *frame = ist->sub2video.frame; + int i; + + av_assert1(frame->data[0]); + ist->sub2video.last_pts = frame->pts = pts; + for (i = 0; i < ist->nb_filters; i++) + av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame, + AV_BUFFERSRC_FLAG_KEEP_REF | + AV_BUFFERSRC_FLAG_PUSH); +} + +static void sub2video_update(InputStream *ist, AVSubtitle *sub) +{ + int w = ist->sub2video.w, h = ist->sub2video.h; + AVFrame *frame = ist->sub2video.frame; + int8_t *dst; + int dst_linesize; + int num_rects, i; + int64_t pts, end_pts; + + if (!frame) + return; + if (sub) { + pts = av_rescale_q(sub->pts + sub->start_display_time * 1000LL, + AV_TIME_BASE_Q, ist->st->time_base); + end_pts = av_rescale_q(sub->pts + sub->end_display_time * 1000LL, + AV_TIME_BASE_Q, ist->st->time_base); + num_rects = sub->num_rects; + } else { + pts = ist->sub2video.end_pts; + end_pts = INT64_MAX; + num_rects = 0; + } + if (sub2video_get_blank_frame(ist) < 0) { + av_log(ist->dec_ctx, AV_LOG_ERROR, + "Impossible to get a blank canvas.\n"); + return; + } + dst = frame->data [0]; + dst_linesize = frame->linesize[0]; + for (i = 0; i < num_rects; i++) + sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]); + sub2video_push_ref(ist, pts); + ist->sub2video.end_pts = end_pts; +} + +static void sub2video_heartbeat(InputStream *ist, int64_t pts) +{ + InputFile *infile = input_files[ist->file_index]; + int i, j, nb_reqs; + int64_t pts2; + + /* When a frame is read from a file, examine all sub2video streams in + the same file and send the sub2video frame again. Otherwise, decoded + video frames could be accumulating in the filter graph while a filter + (possibly overlay) is desperately waiting for a subtitle frame. */ + for (i = 0; i < infile->nb_streams; i++) { + InputStream *ist2 = input_streams[infile->ist_index + i]; + if (!ist2->sub2video.frame) + continue; + /* subtitles seem to be usually muxed ahead of other streams; + if not, subtracting a larger time here is necessary */ + pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1; + /* do not send the heartbeat frame if the subtitle is already ahead */ + if (pts2 <= ist2->sub2video.last_pts) + continue; + if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0]) + sub2video_update(ist2, NULL); + for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++) + nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter); + if (nb_reqs) + sub2video_push_ref(ist2, pts2); + } +} + +static void sub2video_flush(InputStream *ist) +{ + int i; + + if (ist->sub2video.end_pts < INT64_MAX) + sub2video_update(ist, NULL); + for (i = 0; i < ist->nb_filters; i++) + av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0); +} + +/* end of sub2video hack */ + +static void term_exit_sigsafe(void) +{ +#if HAVE_TERMIOS_H + if(restore_tty) + tcsetattr (0, TCSANOW, &oldtty); +#endif +} + +void term_exit(void) +{ + av_log(NULL, AV_LOG_QUIET, "%s", ""); + term_exit_sigsafe(); +} + +static volatile int received_sigterm = 0; +static volatile int received_nb_signals = 0; +static volatile int transcode_init_done = 0; +static int main_return_code = 0; + +static void +sigterm_handler(int sig) +{ + received_sigterm = sig; + received_nb_signals++; + term_exit_sigsafe(); + if(received_nb_signals > 3) + exit(123); +} + +void term_init(void) +{ +#if HAVE_TERMIOS_H + if(!run_as_daemon){ + struct termios tty; + int istty = 1; +#if HAVE_ISATTY + istty = isatty(0) && isatty(2); +#endif + if (istty && tcgetattr (0, &tty) == 0) { + oldtty = tty; + restore_tty = 1; + + tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP + |INLCR|IGNCR|ICRNL|IXON); + tty.c_oflag |= OPOST; + tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); + tty.c_cflag &= ~(CSIZE|PARENB); + tty.c_cflag |= CS8; + tty.c_cc[VMIN] = 1; + tty.c_cc[VTIME] = 0; + + tcsetattr (0, TCSANOW, &tty); + } + signal(SIGQUIT, sigterm_handler); /* Quit (POSIX). */ + } +#endif + avformat_network_deinit(); + + signal(SIGINT , sigterm_handler); /* Interrupt (ANSI). */ + signal(SIGTERM, sigterm_handler); /* Termination (ANSI). */ +#ifdef SIGXCPU + signal(SIGXCPU, sigterm_handler); +#endif +} + +/* read a key without blocking */ +static int read_key(void) +{ + unsigned char ch; +#if HAVE_TERMIOS_H + int n = 1; + struct timeval tv; + fd_set rfds; + + FD_ZERO(&rfds); + FD_SET(0, &rfds); + tv.tv_sec = 0; + tv.tv_usec = 0; + n = select(1, &rfds, NULL, NULL, &tv); + if (n > 0) { + n = read(0, &ch, 1); + if (n == 1) + return ch; + + return n; + } +#elif HAVE_KBHIT +# if HAVE_PEEKNAMEDPIPE + static int is_pipe; + static HANDLE input_handle; + DWORD dw, nchars; + if(!input_handle){ + input_handle = GetStdHandle(STD_INPUT_HANDLE); + is_pipe = !GetConsoleMode(input_handle, &dw); + } + + if (stdin->_cnt > 0) { + read(0, &ch, 1); + return ch; + } + if (is_pipe) { + /* When running under a GUI, you will end here. */ + if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) { + // input pipe may have been closed by the program that ran ffmpeg + return -1; + } + //Read it + if(nchars != 0) { + read(0, &ch, 1); + return ch; + }else{ + return -1; + } + } +# endif + if(kbhit()) + return(getch()); +#endif + return -1; +} + +static int decode_interrupt_cb(void *ctx) +{ + return received_nb_signals > transcode_init_done; +} + +const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL }; + +static void ffmpeg_cleanup(int ret) +{ + int i, j; + + if (do_benchmark) { + int maxrss = getmaxrss() / 1024; + printf("bench: maxrss=%ikB\n", maxrss); + } + + for (i = 0; i < nb_filtergraphs; i++) { + FilterGraph *fg = filtergraphs[i]; + avfilter_graph_free(&fg->graph); + for (j = 0; j < fg->nb_inputs; j++) { + av_freep(&fg->inputs[j]->name); + av_freep(&fg->inputs[j]); + } + av_freep(&fg->inputs); + for (j = 0; j < fg->nb_outputs; j++) { + av_freep(&fg->outputs[j]->name); + av_freep(&fg->outputs[j]); + } + av_freep(&fg->outputs); + av_freep(&fg->graph_desc); + + av_freep(&filtergraphs[i]); + } + av_freep(&filtergraphs); + + av_freep(&subtitle_out); + + /* close files */ + for (i = 0; i < nb_output_files; i++) { + OutputFile *of = output_files[i]; + AVFormatContext *s = of->ctx; + if (s && s->oformat && !(s->oformat->flags & AVFMT_NOFILE) && s->pb) + avio_close(s->pb); + avformat_free_context(s); + av_dict_free(&of->opts); + + av_freep(&output_files[i]); + } + for (i = 0; i < nb_output_streams; i++) { + OutputStream *ost = output_streams[i]; + AVBitStreamFilterContext *bsfc = ost->bitstream_filters; + while (bsfc) { + AVBitStreamFilterContext *next = bsfc->next; + av_bitstream_filter_close(bsfc); + bsfc = next; + } + ost->bitstream_filters = NULL; + av_frame_free(&ost->filtered_frame); + + av_parser_close(ost->parser); + + av_freep(&ost->forced_keyframes); + av_expr_free(ost->forced_keyframes_pexpr); + av_freep(&ost->avfilter); + av_freep(&ost->logfile_prefix); + + av_freep(&ost->audio_channels_map); + ost->audio_channels_mapped = 0; + + avcodec_free_context(&ost->enc_ctx); + + av_freep(&output_streams[i]); + } +#if HAVE_PTHREADS + free_input_threads(); +#endif + for (i = 0; i < nb_input_files; i++) { + avformat_close_input(&input_files[i]->ctx); + av_freep(&input_files[i]); + } + for (i = 0; i < nb_input_streams; i++) { + InputStream *ist = input_streams[i]; + + av_frame_free(&ist->decoded_frame); + av_frame_free(&ist->filter_frame); + av_dict_free(&ist->decoder_opts); + avsubtitle_free(&ist->prev_sub.subtitle); + av_frame_free(&ist->sub2video.frame); + av_freep(&ist->filters); + av_freep(&ist->hwaccel_device); + + avcodec_free_context(&ist->dec_ctx); + + av_freep(&input_streams[i]); + } + + if (vstats_file) + fclose(vstats_file); + av_free(vstats_filename); + + av_freep(&input_streams); + av_freep(&input_files); + av_freep(&output_streams); + av_freep(&output_files); + + uninit_opts(); + + avformat_network_deinit(); + + if (received_sigterm) { + av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n", + (int) received_sigterm); + } else if (ret && transcode_init_done) { + av_log(NULL, AV_LOG_INFO, "Conversion failed!\n"); + } + term_exit(); +} + +void remove_avoptions(AVDictionary **a, AVDictionary *b) +{ + AVDictionaryEntry *t = NULL; + + while ((t = av_dict_get(b, "", t, AV_DICT_IGNORE_SUFFIX))) { + av_dict_set(a, t->key, NULL, AV_DICT_MATCH_CASE); + } +} + +void assert_avoptions(AVDictionary *m) +{ + AVDictionaryEntry *t; + if ((t = av_dict_get(m, "", NULL, AV_DICT_IGNORE_SUFFIX))) { + av_log(NULL, AV_LOG_FATAL, "Option %s not found.\n", t->key); + exit_program(1); + } +} + +static void abort_codec_experimental(AVCodec *c, int encoder) +{ + exit_program(1); +} + +static void update_benchmark(const char *fmt, ...) +{ + if (do_benchmark_all) { + int64_t t = getutime(); + va_list va; + char buf[1024]; + + if (fmt) { + va_start(va, fmt); + vsnprintf(buf, sizeof(buf), fmt, va); + va_end(va); + printf("bench: %8"PRIu64" %s \n", t - current_time, buf); + } + current_time = t; + } +} + +static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others) +{ + int i; + for (i = 0; i < nb_output_streams; i++) { + OutputStream *ost2 = output_streams[i]; + ost2->finished |= ost == ost2 ? this_stream : others; + } +} + +static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost) +{ + AVBitStreamFilterContext *bsfc = ost->bitstream_filters; + AVCodecContext *avctx = ost->st->codec; + int ret; + + if (!ost->st->codec->extradata_size && ost->enc_ctx->extradata_size) { + ost->st->codec->extradata = av_mallocz(ost->enc_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); + if (ost->st->codec->extradata) { + memcpy(ost->st->codec->extradata, ost->enc_ctx->extradata, ost->enc_ctx->extradata_size); + ost->st->codec->extradata_size = ost->enc_ctx->extradata_size; + } + } + + if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) || + (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0)) + pkt->pts = pkt->dts = AV_NOPTS_VALUE; + + /* + * Audio encoders may split the packets -- #frames in != #packets out. + * But there is no reordering, so we can limit the number of output packets + * by simply dropping them here. + * Counting encoded video frames needs to be done separately because of + * reordering, see do_video_out() + */ + if (!(avctx->codec_type == AVMEDIA_TYPE_VIDEO && avctx->codec)) { + if (ost->frame_number >= ost->max_frames) { + av_free_packet(pkt); + return; + } + ost->frame_number++; + } + + if (bsfc) + av_packet_split_side_data(pkt); + + while (bsfc) { + AVPacket new_pkt = *pkt; + int a = av_bitstream_filter_filter(bsfc, avctx, NULL, + &new_pkt.data, &new_pkt.size, + pkt->data, pkt->size, + pkt->flags & AV_PKT_FLAG_KEY); + if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) { + uint8_t *t = av_malloc(new_pkt.size + FF_INPUT_BUFFER_PADDING_SIZE); //the new should be a subset of the old so cannot overflow + if(t) { + memcpy(t, new_pkt.data, new_pkt.size); + memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE); + new_pkt.data = t; + new_pkt.buf = NULL; + a = 1; + } else + a = AVERROR(ENOMEM); + } + if (a > 0) { + pkt->side_data = NULL; + pkt->side_data_elems = 0; + av_free_packet(pkt); + new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size, + av_buffer_default_free, NULL, 0); + if (!new_pkt.buf) + exit_program(1); + } else if (a < 0) { + av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s", + bsfc->filter->name, pkt->stream_index, + avctx->codec ? avctx->codec->name : "copy"); + print_error("", a); + if (exit_on_error) + exit_program(1); + } + *pkt = new_pkt; + + bsfc = bsfc->next; + } + + if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS)) { + if (pkt->dts != AV_NOPTS_VALUE && + pkt->pts != AV_NOPTS_VALUE && + pkt->dts > pkt->pts) { + av_log(s, AV_LOG_WARNING, "Invalid DTS: %"PRId64" PTS: %"PRId64" in output stream %d:%d, replacing by guess\n", + pkt->dts, pkt->pts, + ost->file_index, ost->st->index); + pkt->pts = + pkt->dts = pkt->pts + pkt->dts + ost->last_mux_dts + 1 + - FFMIN3(pkt->pts, pkt->dts, ost->last_mux_dts + 1) + - FFMAX3(pkt->pts, pkt->dts, ost->last_mux_dts + 1); + } + if( + (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) && + pkt->dts != AV_NOPTS_VALUE && + ost->last_mux_dts != AV_NOPTS_VALUE) { + int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT); + if (pkt->dts < max) { + int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG; + av_log(s, loglevel, "Non-monotonous DTS in output stream " + "%d:%d; previous: %"PRId64", current: %"PRId64"; ", + ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts); + if (exit_on_error) { + av_log(NULL, AV_LOG_FATAL, "aborting.\n"); + exit_program(1); + } + av_log(s, loglevel, "changing to %"PRId64". This may result " + "in incorrect timestamps in the output file.\n", + max); + if(pkt->pts >= pkt->dts) + pkt->pts = FFMAX(pkt->pts, max); + pkt->dts = max; + } + } + } + ost->last_mux_dts = pkt->dts; + + ost->data_size += pkt->size; + ost->packets_written++; + + pkt->stream_index = ost->index; + + if (debug_ts) { + av_log(NULL, AV_LOG_INFO, "muxer <- type:%s " + "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n", + av_get_media_type_string(ost->enc_ctx->codec_type), + av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base), + av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base), + pkt->size + ); + } + + ret = av_interleaved_write_frame(s, pkt); + if (ret < 0) { + print_error("av_interleaved_write_frame()", ret); + main_return_code = 1; + close_all_output_streams(ost, MUXER_FINISHED | ENCODER_FINISHED, ENCODER_FINISHED); + } + av_free_packet(pkt); +} + +static void close_output_stream(OutputStream *ost) +{ + OutputFile *of = output_files[ost->file_index]; + + ost->finished |= ENCODER_FINISHED; + if (of->shortest) { + int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, AV_TIME_BASE_Q); + of->recording_time = FFMIN(of->recording_time, end); + } +} + +static int check_recording_time(OutputStream *ost) +{ + OutputFile *of = output_files[ost->file_index]; + + if (of->recording_time != INT64_MAX && + av_compare_ts(ost->sync_opts - ost->first_pts, ost->enc_ctx->time_base, of->recording_time, + AV_TIME_BASE_Q) >= 0) { + close_output_stream(ost); + return 0; + } + return 1; +} + +static void do_audio_out(AVFormatContext *s, OutputStream *ost, + AVFrame *frame) +{ + AVCodecContext *enc = ost->enc_ctx; + AVPacket pkt; + int got_packet = 0; + + av_init_packet(&pkt); + pkt.data = NULL; + pkt.size = 0; + + if (!check_recording_time(ost)) + return; + + if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0) + frame->pts = ost->sync_opts; + ost->sync_opts = frame->pts + frame->nb_samples; + ost->samples_encoded += frame->nb_samples; + ost->frames_encoded++; + + av_assert0(pkt.size || !pkt.data); + update_benchmark(NULL); + if (debug_ts) { + av_log(NULL, AV_LOG_INFO, "encoder <- type:audio " + "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n", + av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base), + enc->time_base.num, enc->time_base.den); + } + + if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) { + av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n"); + exit_program(1); + } + update_benchmark("encode_audio %d.%d", ost->file_index, ost->index); + + if (got_packet) { + av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base); + + if (debug_ts) { + av_log(NULL, AV_LOG_INFO, "encoder -> type:audio " + "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n", + av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base), + av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base)); + } + + write_frame(s, &pkt, ost); + } +} + +static void do_subtitle_out(AVFormatContext *s, + OutputStream *ost, + InputStream *ist, + AVSubtitle *sub) +{ + int subtitle_out_max_size = 1024 * 1024; + int subtitle_out_size, nb, i; + AVCodecContext *enc; + AVPacket pkt; + int64_t pts; + + if (sub->pts == AV_NOPTS_VALUE) { + av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n"); + if (exit_on_error) + exit_program(1); + return; + } + + enc = ost->enc_ctx; + + if (!subtitle_out) { + subtitle_out = av_malloc(subtitle_out_max_size); + } + + /* Note: DVB subtitle need one packet to draw them and one other + packet to clear them */ + /* XXX: signal it in the codec context ? */ + if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) + nb = 2; + else + nb = 1; + + /* shift timestamp to honor -ss and make check_recording_time() work with -t */ + pts = sub->pts; + if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE) + pts -= output_files[ost->file_index]->start_time; + for (i = 0; i < nb; i++) { + unsigned save_num_rects = sub->num_rects; + + ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base); + if (!check_recording_time(ost)) + return; + + sub->pts = pts; + // start_display_time is required to be 0 + sub->pts += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q); + sub->end_display_time -= sub->start_display_time; + sub->start_display_time = 0; + if (i == 1) + sub->num_rects = 0; + + ost->frames_encoded++; + + subtitle_out_size = avcodec_encode_subtitle(enc, subtitle_out, + subtitle_out_max_size, sub); + if (i == 1) + sub->num_rects = save_num_rects; + if (subtitle_out_size < 0) { + av_log(NULL, AV_LOG_FATAL, "Subtitle encoding failed\n"); + exit_program(1); + } + + av_init_packet(&pkt); + pkt.data = subtitle_out; + pkt.size = subtitle_out_size; + pkt.pts = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base); + pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base); + if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) { + /* XXX: the pts correction is handled here. Maybe handling + it in the codec would be better */ + if (i == 0) + pkt.pts += 90 * sub->start_display_time; + else + pkt.pts += 90 * sub->end_display_time; + } + pkt.dts = pkt.pts; + write_frame(s, &pkt, ost); + } +} + +static void do_video_out(AVFormatContext *s, + OutputStream *ost, + AVFrame *in_picture) +{ + int ret, format_video_sync; + AVPacket pkt; + AVCodecContext *enc = ost->enc_ctx; + AVCodecContext *mux_enc = ost->st->codec; + int nb_frames, i; + double sync_ipts, delta; + double duration = 0; + int frame_size = 0; + InputStream *ist = NULL; + + if (ost->source_index >= 0) + ist = input_streams[ost->source_index]; + + if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num) + duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base)); + + sync_ipts = in_picture->pts; + delta = sync_ipts - ost->sync_opts + duration; + + /* by default, we output a single frame */ + nb_frames = 1; + + format_video_sync = video_sync_method; + if (format_video_sync == VSYNC_AUTO) { + if(!strcmp(s->oformat->name, "avi")) { + format_video_sync = VSYNC_VFR; + } else + format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR; + if ( ist + && format_video_sync == VSYNC_CFR + && input_files[ist->file_index]->ctx->nb_streams == 1 + && input_files[ist->file_index]->input_ts_offset == 0) { + format_video_sync = VSYNC_VSCFR; + } + if (format_video_sync == VSYNC_CFR && copy_ts) { + format_video_sync = VSYNC_VSCFR; + } + } + + switch (format_video_sync) { + case VSYNC_VSCFR: + if (ost->frame_number == 0 && delta - duration >= 0.5) { + av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration)); + delta = duration; + ost->sync_opts = lrint(sync_ipts); + } + case VSYNC_CFR: + // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c + if (delta < -1.1) + nb_frames = 0; + else if (delta > 1.1) + nb_frames = lrintf(delta); + break; + case VSYNC_VFR: + if (delta <= -0.6) + nb_frames = 0; + else if (delta > 0.6) + ost->sync_opts = lrint(sync_ipts); + break; + case VSYNC_DROP: + case VSYNC_PASSTHROUGH: + ost->sync_opts = lrint(sync_ipts); + break; + default: + av_assert0(0); + } + + nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number); + if (nb_frames == 0) { + nb_frames_drop++; + av_log(NULL, AV_LOG_VERBOSE, + "*** dropping frame %d from stream %d at ts %"PRId64"\n", + ost->frame_number, ost->st->index, in_picture->pts); + return; + } else if (nb_frames > 1) { + if (nb_frames > dts_error_threshold * 30) { + av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1); + nb_frames_drop++; + return; + } + nb_frames_dup += nb_frames - 1; + av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1); + } + + /* duplicates frame if needed */ + for (i = 0; i < nb_frames; i++) { + av_init_packet(&pkt); + pkt.data = NULL; + pkt.size = 0; + + in_picture->pts = ost->sync_opts; + +#if 1 + if (!check_recording_time(ost)) +#else + if (ost->frame_number >= ost->max_frames) +#endif + return; + + if (s->oformat->flags & AVFMT_RAWPICTURE && + enc->codec->id == AV_CODEC_ID_RAWVIDEO) { + /* raw pictures are written as AVPicture structure to + avoid any copies. We support temporarily the older + method. */ + mux_enc->coded_frame->interlaced_frame = in_picture->interlaced_frame; + mux_enc->coded_frame->top_field_first = in_picture->top_field_first; + if (mux_enc->coded_frame->interlaced_frame) + mux_enc->field_order = mux_enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT; + else + mux_enc->field_order = AV_FIELD_PROGRESSIVE; + pkt.data = (uint8_t *)in_picture; + pkt.size = sizeof(AVPicture); + pkt.pts = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base); + pkt.flags |= AV_PKT_FLAG_KEY; + + write_frame(s, &pkt, ost); + } else { + int got_packet, forced_keyframe = 0; + double pts_time; + + if (enc->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) && + ost->top_field_first >= 0) + in_picture->top_field_first = !!ost->top_field_first; + + if (in_picture->interlaced_frame) { + if (enc->codec->id == AV_CODEC_ID_MJPEG) + mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB; + else + mux_enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT; + } else + mux_enc->field_order = AV_FIELD_PROGRESSIVE; + + in_picture->quality = enc->global_quality; + if (!enc->me_threshold) + in_picture->pict_type = 0; + + pts_time = in_picture->pts != AV_NOPTS_VALUE ? + in_picture->pts * av_q2d(enc->time_base) : NAN; + if (ost->forced_kf_index < ost->forced_kf_count && + in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) { + ost->forced_kf_index++; + forced_keyframe = 1; + } else if (ost->forced_keyframes_pexpr) { + double res; + ost->forced_keyframes_expr_const_values[FKF_T] = pts_time; + res = av_expr_eval(ost->forced_keyframes_pexpr, + ost->forced_keyframes_expr_const_values, NULL); + av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n", + ost->forced_keyframes_expr_const_values[FKF_N], + ost->forced_keyframes_expr_const_values[FKF_N_FORCED], + ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N], + ost->forced_keyframes_expr_const_values[FKF_T], + ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T], + res); + if (res) { + forced_keyframe = 1; + ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = + ost->forced_keyframes_expr_const_values[FKF_N]; + ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = + ost->forced_keyframes_expr_const_values[FKF_T]; + ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1; + } + + ost->forced_keyframes_expr_const_values[FKF_N] += 1; + } + + if (forced_keyframe) { + in_picture->pict_type = AV_PICTURE_TYPE_I; + av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time); + } + + update_benchmark(NULL); + if (debug_ts) { + av_log(NULL, AV_LOG_INFO, "encoder <- type:video " + "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n", + av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base), + enc->time_base.num, enc->time_base.den); + } + + ost->frames_encoded++; + + ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet); + update_benchmark("encode_video %d.%d", ost->file_index, ost->index); + if (ret < 0) { + av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n"); + exit_program(1); + } + + if (got_packet) { + if (debug_ts) { + av_log(NULL, AV_LOG_INFO, "encoder -> type:video " + "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n", + av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base), + av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base)); + } + + if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY)) + pkt.pts = ost->sync_opts; + + av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base); + + if (debug_ts) { + av_log(NULL, AV_LOG_INFO, "encoder -> type:video " + "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n", + av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base), + av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base)); + } + + frame_size = pkt.size; + write_frame(s, &pkt, ost); + + /* if two pass, output log */ + if (ost->logfile && enc->stats_out) { + fprintf(ost->logfile, "%s", enc->stats_out); + } + } + } + ost->sync_opts++; + /* + * For video, number of frames in == number of packets out. + * But there may be reordering, so we can't throw away frames on encoder + * flush, we need to limit them here, before they go into encoder. + */ + ost->frame_number++; + + if (vstats_filename && frame_size) + do_video_stats(ost, frame_size); + } +} + +static double psnr(double d) +{ + return -10.0 * log(d) / log(10.0); +} + +static void do_video_stats(OutputStream *ost, int frame_size) +{ + AVCodecContext *enc; + int frame_number; + double ti1, bitrate, avg_bitrate; + + /* this is executed just the first time do_video_stats is called */ + if (!vstats_file) { + vstats_file = fopen(vstats_filename, "w"); + if (!vstats_file) { + perror("fopen"); + exit_program(1); + } + } + + enc = ost->enc_ctx; + if (enc->codec_type == AVMEDIA_TYPE_VIDEO) { + frame_number = ost->st->nb_frames; + fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA); + if (enc->flags&CODEC_FLAG_PSNR) + fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0))); + + fprintf(vstats_file,"f_size= %6d ", frame_size); + /* compute pts value */ + ti1 = av_stream_get_end_pts(ost->st) * av_q2d(ost->st->time_base); + if (ti1 < 0.01) + ti1 = 0.01; + + bitrate = (frame_size * 8) / av_q2d(enc->time_base) / 1000.0; + avg_bitrate = (double)(ost->data_size * 8) / ti1 / 1000.0; + fprintf(vstats_file, "s_size= %8.0fkB time= %0.3f br= %7.1fkbits/s avg_br= %7.1fkbits/s ", + (double)ost->data_size / 1024, ti1, bitrate, avg_bitrate); + fprintf(vstats_file, "type= %c\n", av_get_picture_type_char(enc->coded_frame->pict_type)); + } +} + +static void finish_output_stream(OutputStream *ost) +{ + OutputFile *of = output_files[ost->file_index]; + int i; + + ost->finished = ENCODER_FINISHED | MUXER_FINISHED; + + if (of->shortest) { + for (i = 0; i < of->ctx->nb_streams; i++) + output_streams[of->ost_index + i]->finished = ENCODER_FINISHED | MUXER_FINISHED; + } +} + +/** + * Get and encode new output from any of the filtergraphs, without causing + * activity. + * + * @return 0 for success, <0 for severe errors + */ +static int reap_filters(void) +{ + AVFrame *filtered_frame = NULL; + int i; + int64_t frame_pts; + + /* Reap all buffers present in the buffer sinks */ + for (i = 0; i < nb_output_streams; i++) { + OutputStream *ost = output_streams[i]; + OutputFile *of = output_files[ost->file_index]; + AVFilterContext *filter; + AVCodecContext *enc = ost->enc_ctx; + int ret = 0; + + if (!ost->filter) + continue; + filter = ost->filter->filter; + + if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) { + return AVERROR(ENOMEM); + } + filtered_frame = ost->filtered_frame; + + while (1) { + ret = av_buffersink_get_frame_flags(filter, filtered_frame, + AV_BUFFERSINK_FLAG_NO_REQUEST); + if (ret < 0) { + if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) { + av_log(NULL, AV_LOG_WARNING, + "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret)); + } + break; + } + if (ost->finished) { + av_frame_unref(filtered_frame); + continue; + } + frame_pts = AV_NOPTS_VALUE; + if (filtered_frame->pts != AV_NOPTS_VALUE) { + int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time; + filtered_frame->pts = frame_pts = + av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, enc->time_base) - + av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base); + } + //if (ost->source_index >= 0) + // *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold + + switch (filter->inputs[0]->type) { + case AVMEDIA_TYPE_VIDEO: + filtered_frame->pts = frame_pts; + if (!ost->frame_aspect_ratio.num) + enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio; + + if (debug_ts) { + av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s time_base:%d/%d\n", + av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base), + enc->time_base.num, enc->time_base.den); + } + + do_video_out(of->ctx, ost, filtered_frame); + break; + case AVMEDIA_TYPE_AUDIO: + filtered_frame->pts = frame_pts; + if (!(enc->codec->capabilities & CODEC_CAP_PARAM_CHANGE) && + enc->channels != av_frame_get_channels(filtered_frame)) { + av_log(NULL, AV_LOG_ERROR, + "Audio filter graph output is not normalized and encoder does not support parameter changes\n"); + break; + } + do_audio_out(of->ctx, ost, filtered_frame); + break; + default: + // TODO support subtitle filters + av_assert0(0); + } + + av_frame_unref(filtered_frame); + } + } + + return 0; +} + +static void print_final_stats(int64_t total_size) +{ + uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0; + uint64_t subtitle_size = 0; + uint64_t data_size = 0; + float percent = -1.0; + int i, j; + + for (i = 0; i < nb_output_streams; i++) { + OutputStream *ost = output_streams[i]; + switch (ost->enc_ctx->codec_type) { + case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break; + case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break; + case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break; + default: other_size += ost->data_size; break; + } + extra_size += ost->enc_ctx->extradata_size; + data_size += ost->data_size; + } + + if (data_size && total_size>0 && total_size >= data_size) + percent = 100.0 * (total_size - data_size) / data_size; + + av_log(NULL, AV_LOG_INFO, "\n"); + av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ", + video_size / 1024.0, + audio_size / 1024.0, + subtitle_size / 1024.0, + other_size / 1024.0, + extra_size / 1024.0); + if (percent >= 0.0) + av_log(NULL, AV_LOG_INFO, "%f%%", percent); + else + av_log(NULL, AV_LOG_INFO, "unknown"); + av_log(NULL, AV_LOG_INFO, "\n"); + + /* print verbose per-stream stats */ + for (i = 0; i < nb_input_files; i++) { + InputFile *f = input_files[i]; + uint64_t total_packets = 0, total_size = 0; + + av_log(NULL, AV_LOG_VERBOSE, "Input file #%d (%s):\n", + i, f->ctx->filename); + + for (j = 0; j < f->nb_streams; j++) { + InputStream *ist = input_streams[f->ist_index + j]; + enum AVMediaType type = ist->dec_ctx->codec_type; + + total_size += ist->data_size; + total_packets += ist->nb_packets; + + av_log(NULL, AV_LOG_VERBOSE, " Input stream #%d:%d (%s): ", + i, j, media_type_string(type)); + av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets read (%"PRIu64" bytes); ", + ist->nb_packets, ist->data_size); + + if (ist->decoding_needed) { + av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames decoded", + ist->frames_decoded); + if (type == AVMEDIA_TYPE_AUDIO) + av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ist->samples_decoded); + av_log(NULL, AV_LOG_VERBOSE, "; "); + } + + av_log(NULL, AV_LOG_VERBOSE, "\n"); + } + + av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) demuxed\n", + total_packets, total_size); + } + + for (i = 0; i < nb_output_files; i++) { + OutputFile *of = output_files[i]; + uint64_t total_packets = 0, total_size = 0; + + av_log(NULL, AV_LOG_VERBOSE, "Output file #%d (%s):\n", + i, of->ctx->filename); + + for (j = 0; j < of->ctx->nb_streams; j++) { + OutputStream *ost = output_streams[of->ost_index + j]; + enum AVMediaType type = ost->enc_ctx->codec_type; + + total_size += ost->data_size; + total_packets += ost->packets_written; + + av_log(NULL, AV_LOG_VERBOSE, " Output stream #%d:%d (%s): ", + i, j, media_type_string(type)); + if (ost->encoding_needed) { + av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" frames encoded", + ost->frames_encoded); + if (type == AVMEDIA_TYPE_AUDIO) + av_log(NULL, AV_LOG_VERBOSE, " (%"PRIu64" samples)", ost->samples_encoded); + av_log(NULL, AV_LOG_VERBOSE, "; "); + } + + av_log(NULL, AV_LOG_VERBOSE, "%"PRIu64" packets muxed (%"PRIu64" bytes); ", + ost->packets_written, ost->data_size); + + av_log(NULL, AV_LOG_VERBOSE, "\n"); + } + + av_log(NULL, AV_LOG_VERBOSE, " Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n", + total_packets, total_size); + } + if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){ + av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n"); + } +} + +static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time) +{ + char buf[1024]; + AVBPrint buf_script; + OutputStream *ost; + AVFormatContext *oc; + int64_t total_size; + AVCodecContext *enc; + int frame_number, vid, i; + double bitrate; + int64_t pts = INT64_MIN; + static int64_t last_time = -1; + static int qp_histogram[52]; + int hours, mins, secs, us; + + if (!print_stats && !is_last_report && !progress_avio) + return; + + if (!is_last_report) { + if (last_time == -1) { + last_time = cur_time; + return; + } + if ((cur_time - last_time) < 500000) + return; + last_time = cur_time; + } + + + oc = output_files[0]->ctx; + + total_size = avio_size(oc->pb); + if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too + total_size = avio_tell(oc->pb); + + buf[0] = '\0'; + vid = 0; + av_bprint_init(&buf_script, 0, 1); + for (i = 0; i < nb_output_streams; i++) { + float q = -1; + ost = output_streams[i]; + enc = ost->enc_ctx; + if (!ost->stream_copy && enc->coded_frame) + q = enc->coded_frame->quality / (float)FF_QP2LAMBDA; + if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) { + snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q); + av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n", + ost->file_index, ost->index, q); + } + if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) { + float fps, t = (cur_time-timer_start) / 1000000.0; + + frame_number = ost->frame_number; + fps = t > 1 ? frame_number / t : 0; + snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ", + frame_number, fps < 9.95, fps, q); + av_bprintf(&buf_script, "frame=%d\n", frame_number); + av_bprintf(&buf_script, "fps=%.1f\n", fps); + av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n", + ost->file_index, ost->index, q); + if (is_last_report) + snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L"); + if (qp_hist) { + int j; + int qp = lrintf(q); + if (qp >= 0 && qp < FF_ARRAY_ELEMS(qp_histogram)) + qp_histogram[qp]++; + for (j = 0; j < 32; j++) + snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1))); + } + if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) { + int j; + double error, error_sum = 0; + double scale, scale_sum = 0; + double p; + char type[3] = { 'Y','U','V' }; + snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR="); + for (j = 0; j < 3; j++) { + if (is_last_report) { + error = enc->error[j]; + scale = enc->width * enc->height * 255.0 * 255.0 * frame_number; + } else { + error = enc->coded_frame->error[j]; + scale = enc->width * enc->height * 255.0 * 255.0; + } + if (j) + scale /= 4; + error_sum += error; + scale_sum += scale; + p = psnr(error / scale); + snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p); + av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n", + ost->file_index, ost->index, type[j] | 32, p); + } + p = psnr(error_sum / scale_sum); + snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum)); + av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n", + ost->file_index, ost->index, p); + } + vid = 1; + } + /* compute min output value */ + if (av_stream_get_end_pts(ost->st) != AV_NOPTS_VALUE) + pts = FFMAX(pts, av_rescale_q(av_stream_get_end_pts(ost->st), + ost->st->time_base, AV_TIME_BASE_Q)); + } + + secs = pts / AV_TIME_BASE; + us = pts % AV_TIME_BASE; + mins = secs / 60; + secs %= 60; + hours = mins / 60; + mins %= 60; + + bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1; + + if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), + "size=N/A time="); + else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), + "size=%8.0fkB time=", total_size / 1024.0); + snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), + "%02d:%02d:%02d.%02d ", hours, mins, secs, + (100 * us) / AV_TIME_BASE); + if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), + "bitrate=N/A"); + else snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), + "bitrate=%6.1fkbits/s", bitrate); + if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n"); + else av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size); + av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts); + av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n", + hours, mins, secs, us); + + if (nb_frames_dup || nb_frames_drop) + snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d", + nb_frames_dup, nb_frames_drop); + av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup); + av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop); + + if (print_stats || is_last_report) { + if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) { + fprintf(stderr, "%s \r", buf); + } else + av_log(NULL, AV_LOG_INFO, "%s \r", buf); + + fflush(stderr); + } + + if (progress_avio) { + av_bprintf(&buf_script, "progress=%s\n", + is_last_report ? "end" : "continue"); + avio_write(progress_avio, buf_script.str, + FFMIN(buf_script.len, buf_script.size - 1)); + avio_flush(progress_avio); + av_bprint_finalize(&buf_script, NULL); + if (is_last_report) { + avio_close(progress_avio); + progress_avio = NULL; + } + } + + if (is_last_report) + print_final_stats(total_size); +} + +static void flush_encoders(void) +{ + int i, ret; + + for (i = 0; i < nb_output_streams; i++) { + OutputStream *ost = output_streams[i]; + AVCodecContext *enc = ost->enc_ctx; + AVFormatContext *os = output_files[ost->file_index]->ctx; + int stop_encoding = 0; + + if (!ost->encoding_needed) + continue; + + if (enc->codec_type == AVMEDIA_TYPE_AUDIO && enc->frame_size <= 1) + continue; + if (enc->codec_type == AVMEDIA_TYPE_VIDEO && (os->oformat->flags & AVFMT_RAWPICTURE) && enc->codec->id == AV_CODEC_ID_RAWVIDEO) + continue; + + for (;;) { + int (*encode)(AVCodecContext*, AVPacket*, const AVFrame*, int*) = NULL; + const char *desc; + + switch (enc->codec_type) { + case AVMEDIA_TYPE_AUDIO: + encode = avcodec_encode_audio2; + desc = "Audio"; + break; + case AVMEDIA_TYPE_VIDEO: + encode = avcodec_encode_video2; + desc = "Video"; + break; + default: + stop_encoding = 1; + } + + if (encode) { + AVPacket pkt; + int pkt_size; + int got_packet; + av_init_packet(&pkt); + pkt.data = NULL; + pkt.size = 0; + + update_benchmark(NULL); + ret = encode(enc, &pkt, NULL, &got_packet); + update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index); + if (ret < 0) { + av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc); + exit_program(1); + } + if (ost->logfile && enc->stats_out) { + fprintf(ost->logfile, "%s", enc->stats_out); + } + if (!got_packet) { + stop_encoding = 1; + break; + } + if (ost->finished & MUXER_FINISHED) { + av_free_packet(&pkt); + continue; + } + av_packet_rescale_ts(&pkt, enc->time_base, ost->st->time_base); + pkt_size = pkt.size; + write_frame(os, &pkt, ost); + if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) { + do_video_stats(ost, pkt_size); + } + } + + if (stop_encoding) + break; + } + } +} + +/* + * Check whether a packet from ist should be written into ost at this time + */ +static int check_output_constraints(InputStream *ist, OutputStream *ost) +{ + OutputFile *of = output_files[ost->file_index]; + int ist_index = input_files[ist->file_index]->ist_index + ist->st->index; + + if (ost->source_index != ist_index) + return 0; + + if (ost->finished) + return 0; + + if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time) + return 0; + + return 1; +} + +static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *pkt) +{ + OutputFile *of = output_files[ost->file_index]; + InputFile *f = input_files [ist->file_index]; + int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time; + int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base); + int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base); + AVPicture pict; + AVPacket opkt; + + av_init_packet(&opkt); + + if ((!ost->frame_number && !(pkt->flags & AV_PKT_FLAG_KEY)) && + !ost->copy_initial_nonkeyframes) + return; + + if (pkt->pts == AV_NOPTS_VALUE) { + if (!ost->frame_number && ist->pts < start_time && + !ost->copy_prior_start) + return; + } else { + if (!ost->frame_number && pkt->pts < ist_tb_start_time && + !ost->copy_prior_start) + return; + } + + if (of->recording_time != INT64_MAX && + ist->pts >= of->recording_time + start_time) { + close_output_stream(ost); + return; + } + + if (f->recording_time != INT64_MAX) { + start_time = f->ctx->start_time; + if (f->start_time != AV_NOPTS_VALUE) + start_time += f->start_time; + if (ist->pts >= f->recording_time + start_time) { + close_output_stream(ost); + return; + } + } + + /* force the input stream PTS */ + if (ost->enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) + ost->sync_opts++; + + if (pkt->pts != AV_NOPTS_VALUE) + opkt.pts = av_rescale_q(pkt->pts, ist->st->time_base, ost->st->time_base) - ost_tb_start_time; + else + opkt.pts = AV_NOPTS_VALUE; + + if (pkt->dts == AV_NOPTS_VALUE) + opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base); + else + opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base); + opkt.dts -= ost_tb_start_time; + + if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) { + int duration = av_get_audio_frame_duration(ist->dec_ctx, pkt->size); + if(!duration) + duration = ist->dec_ctx->frame_size; + opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts, + (AVRational){1, ist->dec_ctx->sample_rate}, duration, &ist->filter_in_rescale_delta_last, + ost->st->time_base) - ost_tb_start_time; + } + + opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base); + opkt.flags = pkt->flags; + + // FIXME remove the following 2 lines they shall be replaced by the bitstream filters + if ( ost->enc_ctx->codec_id != AV_CODEC_ID_H264 + && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG1VIDEO + && ost->enc_ctx->codec_id != AV_CODEC_ID_MPEG2VIDEO + && ost->enc_ctx->codec_id != AV_CODEC_ID_VC1 + ) { + if (av_parser_change(ost->parser, ost->st->codec, + &opkt.data, &opkt.size, + pkt->data, pkt->size, + pkt->flags & AV_PKT_FLAG_KEY)) { + opkt.buf = av_buffer_create(opkt.data, opkt.size, av_buffer_default_free, NULL, 0); + if (!opkt.buf) + exit_program(1); + } + } else { + opkt.data = pkt->data; + opkt.size = pkt->size; + } + av_copy_packet_side_data(&opkt, pkt); + + if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) { + /* store AVPicture in AVPacket, as expected by the output format */ + avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height); + opkt.data = (uint8_t *)&pict; + opkt.size = sizeof(AVPicture); + opkt.flags |= AV_PKT_FLAG_KEY; + } + + write_frame(of->ctx, &opkt, ost); +} + +int guess_input_channel_layout(InputStream *ist) +{ + AVCodecContext *dec = ist->dec_ctx; + + if (!dec->channel_layout) { + char layout_name[256]; + + if (dec->channels > ist->guess_layout_max) + return 0; + dec->channel_layout = av_get_default_channel_layout(dec->channels); + if (!dec->channel_layout) + return 0; + av_get_channel_layout_string(layout_name, sizeof(layout_name), + dec->channels, dec->channel_layout); + av_log(NULL, AV_LOG_WARNING, "Guessed Channel Layout for Input Stream " + "#%d.%d : %s\n", ist->file_index, ist->st->index, layout_name); + } + return 1; +} + +static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output) +{ + AVFrame *decoded_frame, *f; + AVCodecContext *avctx = ist->dec_ctx; + int i, ret, err = 0, resample_changed; + AVRational decoded_frame_tb; + + if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc())) + return AVERROR(ENOMEM); + if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc())) + return AVERROR(ENOMEM); + decoded_frame = ist->decoded_frame; + + update_benchmark(NULL); + ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt); + update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index); + + if (ret >= 0 && avctx->sample_rate <= 0) { + av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate); + ret = AVERROR_INVALIDDATA; + } + + if (*got_output || ret<0 || pkt->size) + decode_error_stat[ret<0] ++; + + if (!*got_output || ret < 0) { + if (!pkt->size) { + for (i = 0; i < ist->nb_filters; i++) +#if 1 + av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0); +#else + av_buffersrc_add_frame(ist->filters[i]->filter, NULL); +#endif + } + return ret; + } + + ist->samples_decoded += decoded_frame->nb_samples; + ist->frames_decoded++; + +#if 1 + /* increment next_dts to use for the case where the input stream does not + have timestamps or there are multiple frames in the packet */ + ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) / + avctx->sample_rate; + ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) / + avctx->sample_rate; +#endif + + resample_changed = ist->resample_sample_fmt != decoded_frame->format || + ist->resample_channels != avctx->channels || + ist->resample_channel_layout != decoded_frame->channel_layout || + ist->resample_sample_rate != decoded_frame->sample_rate; + if (resample_changed) { + char layout1[64], layout2[64]; + + if (!guess_input_channel_layout(ist)) { + av_log(NULL, AV_LOG_FATAL, "Unable to find default channel " + "layout for Input Stream #%d.%d\n", ist->file_index, + ist->st->index); + exit_program(1); + } + decoded_frame->channel_layout = avctx->channel_layout; + + av_get_channel_layout_string(layout1, sizeof(layout1), ist->resample_channels, + ist->resample_channel_layout); + av_get_channel_layout_string(layout2, sizeof(layout2), avctx->channels, + decoded_frame->channel_layout); + + av_log(NULL, AV_LOG_INFO, + "Input stream #%d:%d frame changed from rate:%d fmt:%s ch:%d chl:%s to rate:%d fmt:%s ch:%d chl:%s\n", + ist->file_index, ist->st->index, + ist->resample_sample_rate, av_get_sample_fmt_name(ist->resample_sample_fmt), + ist->resample_channels, layout1, + decoded_frame->sample_rate, av_get_sample_fmt_name(decoded_frame->format), + avctx->channels, layout2); + + ist->resample_sample_fmt = decoded_frame->format; + ist->resample_sample_rate = decoded_frame->sample_rate; + ist->resample_channel_layout = decoded_frame->channel_layout; + ist->resample_channels = avctx->channels; + + for (i = 0; i < nb_filtergraphs; i++) + if (ist_in_filtergraph(filtergraphs[i], ist)) { + FilterGraph *fg = filtergraphs[i]; + if (configure_filtergraph(fg) < 0) { + av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n"); + exit_program(1); + } + } + } + + /* if the decoder provides a pts, use it instead of the last packet pts. + the decoder could be delaying output by a packet or more. */ + if (decoded_frame->pts != AV_NOPTS_VALUE) { + ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q); + decoded_frame_tb = avctx->time_base; + } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) { + decoded_frame->pts = decoded_frame->pkt_pts; + decoded_frame_tb = ist->st->time_base; + } else if (pkt->pts != AV_NOPTS_VALUE) { + decoded_frame->pts = pkt->pts; + decoded_frame_tb = ist->st->time_base; + }else { + decoded_frame->pts = ist->dts; + decoded_frame_tb = AV_TIME_BASE_Q; + } + pkt->pts = AV_NOPTS_VALUE; + if (decoded_frame->pts != AV_NOPTS_VALUE) + decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts, + (AVRational){1, avctx->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last, + (AVRational){1, avctx->sample_rate}); + for (i = 0; i < ist->nb_filters; i++) { + if (i < ist->nb_filters - 1) { + f = ist->filter_frame; + err = av_frame_ref(f, decoded_frame); + if (err < 0) + break; + } else + f = decoded_frame; + err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, + AV_BUFFERSRC_FLAG_PUSH); + if (err == AVERROR_EOF) + err = 0; /* ignore */ + if (err < 0) + break; + } + decoded_frame->pts = AV_NOPTS_VALUE; + + av_frame_unref(ist->filter_frame); + av_frame_unref(decoded_frame); + return err < 0 ? err : ret; +} + +static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output) +{ + AVFrame *decoded_frame, *f; + int i, ret = 0, err = 0, resample_changed; + int64_t best_effort_timestamp; + AVRational *frame_sample_aspect; + + if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc())) + return AVERROR(ENOMEM); + if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc())) + return AVERROR(ENOMEM); + decoded_frame = ist->decoded_frame; + pkt->dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base); + + update_benchmark(NULL); + ret = avcodec_decode_video2(ist->dec_ctx, + decoded_frame, got_output, pkt); + update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index); + + // The following line may be required in some cases where there is no parser + // or the parser does not has_b_frames correctly + if (ist->st->codec->has_b_frames < ist->dec_ctx->has_b_frames) { + if (ist->dec_ctx->codec_id == AV_CODEC_ID_H264) { + ist->st->codec->has_b_frames = ist->dec_ctx->has_b_frames; + } else + av_log_ask_for_sample( + ist->dec_ctx, + "has_b_frames is larger in decoder than demuxer %d > %d ", + ist->dec_ctx->has_b_frames, + ist->st->codec->has_b_frames + ); + } + + if (*got_output || ret<0 || pkt->size) + decode_error_stat[ret<0] ++; + + if (!*got_output || ret < 0) { + if (!pkt->size) { + for (i = 0; i < ist->nb_filters; i++) +#if 1 + av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0); +#else + av_buffersrc_add_frame(ist->filters[i]->filter, NULL); +#endif + } + return ret; + } + + if(ist->top_field_first>=0) + decoded_frame->top_field_first = ist->top_field_first; + + ist->frames_decoded++; + + if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) { + err = ist->hwaccel_retrieve_data(ist->dec_ctx, decoded_frame); + if (err < 0) + goto fail; + } + ist->hwaccel_retrieved_pix_fmt = decoded_frame->format; + + best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame); + if(best_effort_timestamp != AV_NOPTS_VALUE) + ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q); + + if (debug_ts) { + av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video " + "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d time_base:%d/%d\n", + ist->st->index, av_ts2str(decoded_frame->pts), + av_ts2timestr(decoded_frame->pts, &ist->st->time_base), + best_effort_timestamp, + av_ts2timestr(best_effort_timestamp, &ist->st->time_base), + decoded_frame->key_frame, decoded_frame->pict_type, + ist->st->time_base.num, ist->st->time_base.den); + } + + pkt->size = 0; + + if (ist->st->sample_aspect_ratio.num) + decoded_frame->sample_aspect_ratio = ist->st->sample_aspect_ratio; + + resample_changed = ist->resample_width != decoded_frame->width || + ist->resample_height != decoded_frame->height || + ist->resample_pix_fmt != decoded_frame->format; + if (resample_changed) { + av_log(NULL, AV_LOG_INFO, + "Input stream #%d:%d frame changed from size:%dx%d fmt:%s to size:%dx%d fmt:%s\n", + ist->file_index, ist->st->index, + ist->resample_width, ist->resample_height, av_get_pix_fmt_name(ist->resample_pix_fmt), + decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format)); + + ist->resample_width = decoded_frame->width; + ist->resample_height = decoded_frame->height; + ist->resample_pix_fmt = decoded_frame->format; + + for (i = 0; i < nb_filtergraphs; i++) { + if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters && + configure_filtergraph(filtergraphs[i]) < 0) { + av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n"); + exit_program(1); + } + } + } + + frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio"); + for (i = 0; i < ist->nb_filters; i++) { + if (!frame_sample_aspect->num) + *frame_sample_aspect = ist->st->sample_aspect_ratio; + + if (i < ist->nb_filters - 1) { + f = ist->filter_frame; + err = av_frame_ref(f, decoded_frame); + if (err < 0) + break; + } else + f = decoded_frame; + ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH); + if (ret == AVERROR_EOF) { + ret = 0; /* ignore */ + } else if (ret < 0) { + av_log(NULL, AV_LOG_FATAL, + "Failed to inject frame into filter network: %s\n", av_err2str(ret)); + exit_program(1); + } + } + +fail: + av_frame_unref(ist->filter_frame); + av_frame_unref(decoded_frame); + return err < 0 ? err : ret; +} + +static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output) +{ + AVSubtitle subtitle; + int i, ret = avcodec_decode_subtitle2(ist->dec_ctx, + &subtitle, got_output, pkt); + + if (*got_output || ret<0 || pkt->size) + decode_error_stat[ret<0] ++; + + if (ret < 0 || !*got_output) { + if (!pkt->size) + sub2video_flush(ist); + return ret; + } + + if (ist->fix_sub_duration) { + int end = 1; + if (ist->prev_sub.got_output) { + end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts, + 1000, AV_TIME_BASE); + if (end < ist->prev_sub.subtitle.end_display_time) { + av_log(ist->dec_ctx, AV_LOG_DEBUG, + "Subtitle duration reduced from %d to %d%s\n", + ist->prev_sub.subtitle.end_display_time, end, + end <= 0 ? ", dropping it" : ""); + ist->prev_sub.subtitle.end_display_time = end; + } + } + FFSWAP(int, *got_output, ist->prev_sub.got_output); + FFSWAP(int, ret, ist->prev_sub.ret); + FFSWAP(AVSubtitle, subtitle, ist->prev_sub.subtitle); + if (end <= 0) + goto out; + } + + if (!*got_output) + return ret; + + sub2video_update(ist, &subtitle); + + if (!subtitle.num_rects) + goto out; + + ist->frames_decoded++; + + for (i = 0; i < nb_output_streams; i++) { + OutputStream *ost = output_streams[i]; + + if (!check_output_constraints(ist, ost) || !ost->encoding_needed + || ost->enc->type != AVMEDIA_TYPE_SUBTITLE) + continue; + + do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle); + } + +out: + avsubtitle_free(&subtitle); + return ret; +} + +/* pkt = NULL means EOF (needed to flush decoder buffers) */ +static int process_input_packet(InputStream *ist, const AVPacket *pkt) +{ + int ret = 0, i; + int got_output = 0; + + AVPacket avpkt; + if (!ist->saw_first_ts) { + ist->dts = ist->st->avg_frame_rate.num ? - ist->dec_ctx->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0; + ist->pts = 0; + if (pkt && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) { + ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q); + ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong + } + ist->saw_first_ts = 1; + } + + if (ist->next_dts == AV_NOPTS_VALUE) + ist->next_dts = ist->dts; + if (ist->next_pts == AV_NOPTS_VALUE) + ist->next_pts = ist->pts; + + if (!pkt) { + /* EOF handling */ + av_init_packet(&avpkt); + avpkt.data = NULL; + avpkt.size = 0; + goto handle_eof; + } else { + avpkt = *pkt; + } + + if (pkt->dts != AV_NOPTS_VALUE) { + ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q); + if (ist->dec_ctx->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed) + ist->next_pts = ist->pts = ist->dts; + } + + // while we have more to decode or while the decoder did output something on EOF + while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) { + int duration; + handle_eof: + + ist->pts = ist->next_pts; + ist->dts = ist->next_dts; + + if (avpkt.size && avpkt.size != pkt->size && + !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) { + av_log(NULL, ist->showed_multi_packet_warning ? AV_LOG_VERBOSE : AV_LOG_WARNING, + "Multiple frames in a packet from stream %d\n", pkt->stream_index); + ist->showed_multi_packet_warning = 1; + } + + switch (ist->dec_ctx->codec_type) { + case AVMEDIA_TYPE_AUDIO: + ret = decode_audio (ist, &avpkt, &got_output); + break; + case AVMEDIA_TYPE_VIDEO: + ret = decode_video (ist, &avpkt, &got_output); + if (avpkt.duration) { + duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q); + } else if(ist->dec_ctx->framerate.num != 0 && ist->dec_ctx->framerate.den != 0) { + int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict+1 : ist->dec_ctx->ticks_per_frame; + duration = ((int64_t)AV_TIME_BASE * + ist->dec_ctx->framerate.den * ticks) / + ist->dec_ctx->framerate.num / ist->dec_ctx->ticks_per_frame; + } else + duration = 0; + + if(ist->dts != AV_NOPTS_VALUE && duration) { + ist->next_dts += duration; + }else + ist->next_dts = AV_NOPTS_VALUE; + + if (got_output) + ist->next_pts += duration; //FIXME the duration is not correct in some cases + break; + case AVMEDIA_TYPE_SUBTITLE: + ret = transcode_subtitles(ist, &avpkt, &got_output); + break; + default: + return -1; + } + + if (ret < 0) + return ret; + + avpkt.dts= + avpkt.pts= AV_NOPTS_VALUE; + + // touch data and size only if not EOF + if (pkt) { + if(ist->dec_ctx->codec_type != AVMEDIA_TYPE_AUDIO) + ret = avpkt.size; + avpkt.data += ret; + avpkt.size -= ret; + } + if (!got_output) { + continue; + } + if (got_output && !pkt) + break; + } + + /* handle stream copy */ + if (!ist->decoding_needed) { + ist->dts = ist->next_dts; + switch (ist->dec_ctx->codec_type) { + case AVMEDIA_TYPE_AUDIO: + ist->next_dts += ((int64_t)AV_TIME_BASE * ist->dec_ctx->frame_size) / + ist->dec_ctx->sample_rate; + break; + case AVMEDIA_TYPE_VIDEO: + if (ist->framerate.num) { + // TODO: Remove work-around for c99-to-c89 issue 7 + AVRational time_base_q = AV_TIME_BASE_Q; + int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate)); + ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q); + } else if (pkt->duration) { + ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q); + } else if(ist->dec_ctx->framerate.num != 0) { + int ticks= av_stream_get_parser(ist->st) ? av_stream_get_parser(ist->st)->repeat_pict + 1 : ist->dec_ctx->ticks_per_frame; + ist->next_dts += ((int64_t)AV_TIME_BASE * + ist->dec_ctx->framerate.den * ticks) / + ist->dec_ctx->framerate.num / ist->dec_ctx->ticks_per_frame; + } + break; + } + ist->pts = ist->dts; + ist->next_pts = ist->next_dts; + } + for (i = 0; pkt && i < nb_output_streams; i++) { + OutputStream *ost = output_streams[i]; + + if (!check_output_constraints(ist, ost) || ost->encoding_needed) + continue; + + do_streamcopy(ist, ost, pkt); + } + + return got_output; +} + +static void print_sdp(void) +{ + char sdp[16384]; + int i; + AVFormatContext **avc = av_malloc_array(nb_output_files, sizeof(*avc)); + + if (!avc) + exit_program(1); + for (i = 0; i < nb_output_files; i++) + avc[i] = output_files[i]->ctx; + + av_sdp_create(avc, nb_output_files, sdp, sizeof(sdp)); + printf("SDP:\n%s\n", sdp); + fflush(stdout); + av_freep(&avc); +} + +static const HWAccel *get_hwaccel(enum AVPixelFormat pix_fmt) +{ + int i; + for (i = 0; hwaccels[i].name; i++) + if (hwaccels[i].pix_fmt == pix_fmt) + return &hwaccels[i]; + return NULL; +} + +static enum AVPixelFormat get_format(AVCodecContext *s, const enum AVPixelFormat *pix_fmts) +{ + InputStream *ist = s->opaque; + const enum AVPixelFormat *p; + int ret; + + for (p = pix_fmts; *p != -1; p++) { + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(*p); + const HWAccel *hwaccel; + + if (!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL)) + break; + + hwaccel = get_hwaccel(*p); + if (!hwaccel || + (ist->active_hwaccel_id && ist->active_hwaccel_id != hwaccel->id) || + (ist->hwaccel_id != HWACCEL_AUTO && ist->hwaccel_id != hwaccel->id)) + continue; + + ret = hwaccel->init(s); + if (ret < 0) { + if (ist->hwaccel_id == hwaccel->id) { + av_log(NULL, AV_LOG_FATAL, + "%s hwaccel requested for input stream #%d:%d, " + "but cannot be initialized.\n", hwaccel->name, + ist->file_index, ist->st->index); + exit_program(1); + } + continue; + } + ist->active_hwaccel_id = hwaccel->id; + ist->hwaccel_pix_fmt = *p; + break; + } + + return *p; +} + +static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags) +{ + InputStream *ist = s->opaque; + + if (ist->hwaccel_get_buffer && frame->format == ist->hwaccel_pix_fmt) + return ist->hwaccel_get_buffer(s, frame, flags); + + return avcodec_default_get_buffer2(s, frame, flags); +} + +static int init_input_stream(int ist_index, char *error, int error_len) +{ + int ret; + InputStream *ist = input_streams[ist_index]; + + if (ist->decoding_needed) { + AVCodec *codec = ist->dec; + if (!codec) { + snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d", + avcodec_get_name(ist->dec_ctx->codec_id), ist->file_index, ist->st->index); + return AVERROR(EINVAL); + } + + ist->dec_ctx->opaque = ist; + ist->dec_ctx->get_format = get_format; + ist->dec_ctx->get_buffer2 = get_buffer; + ist->dec_ctx->thread_safe_callbacks = 1; + + av_opt_set_int(ist->dec_ctx, "refcounted_frames", 1, 0); + if (ist->dec_ctx->codec_id == AV_CODEC_ID_DVB_SUBTITLE && + (ist->decoding_needed & DECODING_FOR_OST)) { + av_dict_set(&ist->decoder_opts, "compute_edt", "1", AV_DICT_DONT_OVERWRITE); + if (ist->decoding_needed & DECODING_FOR_FILTER) + av_log(NULL, AV_LOG_WARNING, "Warning using DVB subtitles for filtering and output at the same time is not fully supported, also see -compute_edt [0|1]\n"); + } + + if (!av_dict_get(ist->decoder_opts, "threads", NULL, 0)) + av_dict_set(&ist->decoder_opts, "threads", "auto", 0); + if ((ret = avcodec_open2(ist->dec_ctx, codec, &ist->decoder_opts)) < 0) { + if (ret == AVERROR_EXPERIMENTAL) + abort_codec_experimental(codec, 0); + + snprintf(error, error_len, + "Error while opening decoder for input stream " + "#%d:%d : %s", + ist->file_index, ist->st->index, av_err2str(ret)); + return ret; + } + assert_avoptions(ist->decoder_opts); + } + + ist->next_pts = AV_NOPTS_VALUE; + ist->next_dts = AV_NOPTS_VALUE; + + return 0; +} + +static InputStream *get_input_stream(OutputStream *ost) +{ + if (ost->source_index >= 0) + return input_streams[ost->source_index]; + return NULL; +} + +static int compare_int64(const void *a, const void *b) +{ + int64_t va = *(int64_t *)a, vb = *(int64_t *)b; + return va < vb ? -1 : va > vb ? +1 : 0; +} + +static void parse_forced_key_frames(char *kf, OutputStream *ost, + AVCodecContext *avctx) +{ + char *p; + int n = 1, i, size, index = 0; + int64_t t, *pts; + + for (p = kf; *p; p++) + if (*p == ',') + n++; + size = n; + pts = av_malloc_array(size, sizeof(*pts)); + if (!pts) { + av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n"); + exit_program(1); + } + + p = kf; + for (i = 0; i < n; i++) { + char *next = strchr(p, ','); + + if (next) + *next++ = 0; + + if (!memcmp(p, "chapters", 8)) { + + AVFormatContext *avf = output_files[ost->file_index]->ctx; + int j; + + if (avf->nb_chapters > INT_MAX - size || + !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1, + sizeof(*pts)))) { + av_log(NULL, AV_LOG_FATAL, + "Could not allocate forced key frames array.\n"); + exit_program(1); + } + t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0; + t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base); + + for (j = 0; j < avf->nb_chapters; j++) { + AVChapter *c = avf->chapters[j]; + av_assert1(index < size); + pts[index++] = av_rescale_q(c->start, c->time_base, + avctx->time_base) + t; + } + + } else { + + t = parse_time_or_die("force_key_frames", p, 1); + av_assert1(index < size); + pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base); + + } + + p = next; + } + + av_assert0(index == size); + qsort(pts, size, sizeof(*pts), compare_int64); + ost->forced_kf_count = size; + ost->forced_kf_pts = pts; +} + +static void report_new_stream(int input_index, AVPacket *pkt) +{ + InputFile *file = input_files[input_index]; + AVStream *st = file->ctx->streams[pkt->stream_index]; + + if (pkt->stream_index < file->nb_streams_warn) + return; + av_log(file->ctx, AV_LOG_WARNING, + "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n", + av_get_media_type_string(st->codec->codec_type), + input_index, pkt->stream_index, + pkt->pos, av_ts2timestr(pkt->dts, &st->time_base)); + file->nb_streams_warn = pkt->stream_index + 1; +} + +static void set_encoder_id(OutputFile *of, OutputStream *ost) +{ + AVDictionaryEntry *e; + + uint8_t *encoder_string; + int encoder_string_len; + int format_flags = 0; + int codec_flags = 0; + + if (av_dict_get(ost->st->metadata, "encoder", NULL, 0)) + return; + + e = av_dict_get(of->opts, "fflags", NULL, 0); + if (e) { + const AVOption *o = av_opt_find(of->ctx, "fflags", NULL, 0, 0); + if (!o) + return; + av_opt_eval_flags(of->ctx, o, e->value, &format_flags); + } + e = av_dict_get(ost->encoder_opts, "flags", NULL, 0); + if (e) { + const AVOption *o = av_opt_find(ost->enc_ctx, "flags", NULL, 0, 0); + if (!o) + return; + av_opt_eval_flags(ost->enc_ctx, o, e->value, &codec_flags); + } + + encoder_string_len = sizeof(LIBAVCODEC_IDENT) + strlen(ost->enc->name) + 2; + encoder_string = av_mallocz(encoder_string_len); + if (!encoder_string) + exit_program(1); + + if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & CODEC_FLAG_BITEXACT)) + av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len); + else + av_strlcpy(encoder_string, "Lavc ", encoder_string_len); + av_strlcat(encoder_string, ost->enc->name, encoder_string_len); + av_dict_set(&ost->st->metadata, "encoder", encoder_string, + AV_DICT_DONT_STRDUP_VAL | AV_DICT_DONT_OVERWRITE); +} + +static int transcode_init(void) +{ + int ret = 0, i, j, k; + AVFormatContext *oc; + OutputStream *ost; + InputStream *ist; + char error[1024]; + int want_sdp = 1; + + for (i = 0; i < nb_filtergraphs; i++) { + FilterGraph *fg = filtergraphs[i]; + for (j = 0; j < fg->nb_outputs; j++) { + OutputFilter *ofilter = fg->outputs[j]; + if (!ofilter->ost || ofilter->ost->source_index >= 0) + continue; + if (fg->nb_inputs != 1) + continue; + for (k = nb_input_streams-1; k >= 0 ; k--) + if (fg->inputs[0]->ist == input_streams[k]) + break; + ofilter->ost->source_index = k; + } + } + + /* init framerate emulation */ + for (i = 0; i < nb_input_files; i++) { + InputFile *ifile = input_files[i]; + if (ifile->rate_emu) + for (j = 0; j < ifile->nb_streams; j++) + input_streams[j + ifile->ist_index]->start = av_gettime_relative(); + } + + /* output stream init */ + for (i = 0; i < nb_output_files; i++) { + oc = output_files[i]->ctx; + if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) { + av_dump_format(oc, i, oc->filename, 1); + av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", i); + return AVERROR(EINVAL); + } + } + + /* init complex filtergraphs */ + for (i = 0; i < nb_filtergraphs; i++) + if ((ret = avfilter_graph_config(filtergraphs[i]->graph, NULL)) < 0) + return ret; + + /* for each output stream, we compute the right encoding parameters */ + for (i = 0; i < nb_output_streams; i++) { + AVCodecContext *enc_ctx; + AVCodecContext *dec_ctx = NULL; + ost = output_streams[i]; + oc = output_files[ost->file_index]->ctx; + ist = get_input_stream(ost); + + if (ost->attachment_filename) + continue; + + enc_ctx = ost->enc_ctx; + + if (ist) { + dec_ctx = ist->dec_ctx; + + ost->st->disposition = ist->st->disposition; + enc_ctx->bits_per_raw_sample = dec_ctx->bits_per_raw_sample; + enc_ctx->chroma_sample_location = dec_ctx->chroma_sample_location; + } else { + for (j=0; j<oc->nb_streams; j++) { + AVStream *st = oc->streams[j]; + if (st != ost->st && st->codec->codec_type == enc_ctx->codec_type) + break; + } + if (j == oc->nb_streams) + if (enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO || enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) + ost->st->disposition = AV_DISPOSITION_DEFAULT; + } + + if (ost->stream_copy) { + AVRational sar; + uint64_t extra_size; + + av_assert0(ist && !ost->filter); + + extra_size = (uint64_t)dec_ctx->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE; + + if (extra_size > INT_MAX) { + return AVERROR(EINVAL); + } + + /* if stream_copy is selected, no need to decode or encode */ + enc_ctx->codec_id = dec_ctx->codec_id; + enc_ctx->codec_type = dec_ctx->codec_type; + + if (!enc_ctx->codec_tag) { + unsigned int codec_tag; + if (!oc->oformat->codec_tag || + av_codec_get_id (oc->oformat->codec_tag, dec_ctx->codec_tag) == enc_ctx->codec_id || + !av_codec_get_tag2(oc->oformat->codec_tag, dec_ctx->codec_id, &codec_tag)) + enc_ctx->codec_tag = dec_ctx->codec_tag; + } + + enc_ctx->bit_rate = dec_ctx->bit_rate; + enc_ctx->rc_max_rate = dec_ctx->rc_max_rate; + enc_ctx->rc_buffer_size = dec_ctx->rc_buffer_size; + enc_ctx->field_order = dec_ctx->field_order; + enc_ctx->extradata = av_mallocz(extra_size); + if (!enc_ctx->extradata) { + return AVERROR(ENOMEM); + } + memcpy(enc_ctx->extradata, dec_ctx->extradata, dec_ctx->extradata_size); + enc_ctx->extradata_size= dec_ctx->extradata_size; + enc_ctx->bits_per_coded_sample = dec_ctx->bits_per_coded_sample; + + enc_ctx->time_base = ist->st->time_base; + /* + * Avi is a special case here because it supports variable fps but + * having the fps and timebase differe significantly adds quite some + * overhead + */ + if(!strcmp(oc->oformat->name, "avi")) { + if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate) + && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base) + && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(dec_ctx->time_base) + && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(dec_ctx->time_base) < 1.0/500 + || copy_tb==2){ + enc_ctx->time_base.num = ist->st->r_frame_rate.den; + enc_ctx->time_base.den = 2*ist->st->r_frame_rate.num; + enc_ctx->ticks_per_frame = 2; + } else if ( copy_tb<0 && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > 2*av_q2d(ist->st->time_base) + && av_q2d(ist->st->time_base) < 1.0/500 + || copy_tb==0){ + enc_ctx->time_base = dec_ctx->time_base; + enc_ctx->time_base.num *= dec_ctx->ticks_per_frame; + enc_ctx->time_base.den *= 2; + enc_ctx->ticks_per_frame = 2; + } + } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS) + && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp") + && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod") + && strcmp(oc->oformat->name, "f4v") + ) { + if( copy_tb<0 && dec_ctx->time_base.den + && av_q2d(dec_ctx->time_base)*dec_ctx->ticks_per_frame > av_q2d(ist->st->time_base) + && av_q2d(ist->st->time_base) < 1.0/500 + || copy_tb==0){ + enc_ctx->time_base = dec_ctx->time_base; + enc_ctx->time_base.num *= dec_ctx->ticks_per_frame; + } + } + if ( enc_ctx->codec_tag == AV_RL32("tmcd") + && dec_ctx->time_base.num < dec_ctx->time_base.den + && dec_ctx->time_base.num > 0 + && 121LL*dec_ctx->time_base.num > dec_ctx->time_base.den) { + enc_ctx->time_base = dec_ctx->time_base; + } + + if (ist && !ost->frame_rate.num) + ost->frame_rate = ist->framerate; + if(ost->frame_rate.num) + enc_ctx->time_base = av_inv_q(ost->frame_rate); + + av_reduce(&enc_ctx->time_base.num, &enc_ctx->time_base.den, + enc_ctx->time_base.num, enc_ctx->time_base.den, INT_MAX); + + ost->parser = av_parser_init(enc_ctx->codec_id); + + switch (enc_ctx->codec_type) { + case AVMEDIA_TYPE_AUDIO: + if (audio_volume != 256) { + av_log(NULL, AV_LOG_FATAL, "-acodec copy and -vol are incompatible (frames are not decoded)\n"); + exit_program(1); + } + enc_ctx->channel_layout = dec_ctx->channel_layout; + enc_ctx->sample_rate = dec_ctx->sample_rate; + enc_ctx->channels = dec_ctx->channels; + enc_ctx->frame_size = dec_ctx->frame_size; + enc_ctx->audio_service_type = dec_ctx->audio_service_type; + enc_ctx->block_align = dec_ctx->block_align; + enc_ctx->initial_padding = dec_ctx->delay; +#if FF_API_AUDIOENC_DELAY + enc_ctx->delay = dec_ctx->delay; +#endif + if((enc_ctx->block_align == 1 || enc_ctx->block_align == 1152 || enc_ctx->block_align == 576) && enc_ctx->codec_id == AV_CODEC_ID_MP3) + enc_ctx->block_align= 0; + if(enc_ctx->codec_id == AV_CODEC_ID_AC3) + enc_ctx->block_align= 0; + break; + case AVMEDIA_TYPE_VIDEO: + enc_ctx->pix_fmt = dec_ctx->pix_fmt; + enc_ctx->width = dec_ctx->width; + enc_ctx->height = dec_ctx->height; + enc_ctx->has_b_frames = dec_ctx->has_b_frames; + if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option + sar = + av_mul_q(ost->frame_aspect_ratio, + (AVRational){ enc_ctx->height, enc_ctx->width }); + av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio " + "with stream copy may produce invalid files\n"); + } + else if (ist->st->sample_aspect_ratio.num) + sar = ist->st->sample_aspect_ratio; + else + sar = dec_ctx->sample_aspect_ratio; + ost->st->sample_aspect_ratio = enc_ctx->sample_aspect_ratio = sar; + ost->st->avg_frame_rate = ist->st->avg_frame_rate; + break; + case AVMEDIA_TYPE_SUBTITLE: + enc_ctx->width = dec_ctx->width; + enc_ctx->height = dec_ctx->height; + break; + case AVMEDIA_TYPE_DATA: + case AVMEDIA_TYPE_ATTACHMENT: + break; + default: + abort(); + } + } else { + if (!ost->enc) + ost->enc = avcodec_find_encoder(enc_ctx->codec_id); + if (!ost->enc) { + /* should only happen when a default codec is not present. */ + snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d", + avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index); + ret = AVERROR(EINVAL); + goto dump_format; + } + + if (ist) + ist->decoding_needed |= DECODING_FOR_OST; + ost->encoding_needed = 1; + + set_encoder_id(output_files[ost->file_index], ost); + + if (!ost->filter && + (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO || + enc_ctx->codec_type == AVMEDIA_TYPE_AUDIO)) { + FilterGraph *fg; + fg = init_simple_filtergraph(ist, ost); + if (configure_filtergraph(fg)) { + av_log(NULL, AV_LOG_FATAL, "Error opening filters!\n"); + exit_program(1); + } + } + + if (enc_ctx->codec_type == AVMEDIA_TYPE_VIDEO) { + if (ost->filter && !ost->frame_rate.num) + ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter); + if (ist && !ost->frame_rate.num) + ost->frame_rate = ist->framerate; + if (ist && !ost->frame_rate.num) + ost->frame_rate = ist->st->r_frame_rate; + if (ist && !ost->frame_rate.num) { + ost->frame_rate = (AVRational){25, 1}; + av_log(NULL, AV_LOG_WARNING, + "No information " + "about the input framerate is available. Falling " + "back to a default value of 25fps for output stream #%d:%d. Use the -r option " + "if you want a different framerate.\n", + ost->file_index, ost->index); + } +// ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1}; + if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) { + int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates); + ost->frame_rate = ost->enc->supported_framerates[idx]; + } + if (enc_ctx->codec_id == AV_CODEC_ID_MPEG4) { + av_reduce(&ost->frame_rate.num, &ost->frame_rate.den, + ost->frame_rate.num, ost->frame_rate.den, 65535); + } + } + + switch (enc_ctx->codec_type) { + case AVMEDIA_TYPE_AUDIO: + enc_ctx->sample_fmt = ost->filter->filter->inputs[0]->format; + enc_ctx->sample_rate = ost->filter->filter->inputs[0]->sample_rate; + enc_ctx->channel_layout = ost->filter->filter->inputs[0]->channel_layout; + enc_ctx->channels = avfilter_link_get_channels(ost->filter->filter->inputs[0]); + enc_ctx->time_base = (AVRational){ 1, enc_ctx->sample_rate }; + break; + case AVMEDIA_TYPE_VIDEO: + enc_ctx->time_base = av_inv_q(ost->frame_rate); + if (ost->filter && !(enc_ctx->time_base.num && enc_ctx->time_base.den)) + enc_ctx->time_base = ost->filter->filter->inputs[0]->time_base; + if ( av_q2d(enc_ctx->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH + && (video_sync_method == VSYNC_CFR || video_sync_method == VSYNC_VSCFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){ + av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n" + "Please consider specifying a lower framerate, a different muxer or -vsync 2\n"); + } + for (j = 0; j < ost->forced_kf_count; j++) + ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j], + AV_TIME_BASE_Q, + enc_ctx->time_base); + + enc_ctx->width = ost->filter->filter->inputs[0]->w; + enc_ctx->height = ost->filter->filter->inputs[0]->h; + enc_ctx->sample_aspect_ratio = ost->st->sample_aspect_ratio = + ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option + av_mul_q(ost->frame_aspect_ratio, (AVRational){ enc_ctx->height, enc_ctx->width }) : + ost->filter->filter->inputs[0]->sample_aspect_ratio; + if (!strncmp(ost->enc->name, "libx264", 7) && + enc_ctx->pix_fmt == AV_PIX_FMT_NONE && + ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P) + av_log(NULL, AV_LOG_WARNING, + "No pixel format specified, %s for H.264 encoding chosen.\n" + "Use -pix_fmt yuv420p for compatibility with outdated media players.\n", + av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format)); + if (!strncmp(ost->enc->name, "mpeg2video", 10) && + enc_ctx->pix_fmt == AV_PIX_FMT_NONE && + ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P) + av_log(NULL, AV_LOG_WARNING, + "No pixel format specified, %s for MPEG-2 encoding chosen.\n" + "Use -pix_fmt yuv420p for compatibility with outdated media players.\n", + av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format)); + enc_ctx->pix_fmt = ost->filter->filter->inputs[0]->format; + + ost->st->avg_frame_rate = ost->frame_rate; + + if (!dec_ctx || + enc_ctx->width != dec_ctx->width || + enc_ctx->height != dec_ctx->height || + enc_ctx->pix_fmt != dec_ctx->pix_fmt) { + enc_ctx->bits_per_raw_sample = frame_bits_per_raw_sample; + } + + if (ost->forced_keyframes) { + if (!strncmp(ost->forced_keyframes, "expr:", 5)) { + ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5, + forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL); + if (ret < 0) { + av_log(NULL, AV_LOG_ERROR, + "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5); + return ret; + } + ost->forced_keyframes_expr_const_values[FKF_N] = 0; + ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0; + ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN; + ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN; + } else { + parse_forced_key_frames(ost->forced_keyframes, ost, ost->enc_ctx); + } + } + break; + case AVMEDIA_TYPE_SUBTITLE: + enc_ctx->time_base = (AVRational){1, 1000}; + if (!enc_ctx->width) { + enc_ctx->width = input_streams[ost->source_index]->st->codec->width; + enc_ctx->height = input_streams[ost->source_index]->st->codec->height; + } + break; + default: + abort(); + break; + } + /* two pass mode */ + if (enc_ctx->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) { + char logfilename[1024]; + FILE *f; + + snprintf(logfilename, sizeof(logfilename), "%s-%d.log", + ost->logfile_prefix ? ost->logfile_prefix : + DEFAULT_PASS_LOGFILENAME_PREFIX, + i); + if (!strcmp(ost->enc->name, "libx264")) { + av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE); + } else { + if (enc_ctx->flags & CODEC_FLAG_PASS2) { + char *logbuffer; + size_t logbuffer_size; + if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) { + av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n", + logfilename); + exit_program(1); + } + enc_ctx->stats_in = logbuffer; + } + if (enc_ctx->flags & CODEC_FLAG_PASS1) { + f = av_fopen_utf8(logfilename, "wb"); + if (!f) { + av_log(NULL, AV_LOG_FATAL, "Cannot write log file '%s' for pass-1 encoding: %s\n", + logfilename, strerror(errno)); + exit_program(1); + } + ost->logfile = f; + } + } + } + } + } + + /* open each encoder */ + for (i = 0; i < nb_output_streams; i++) { + ost = output_streams[i]; + if (ost->encoding_needed) { + AVCodec *codec = ost->enc; + AVCodecContext *dec = NULL; + + if ((ist = get_input_stream(ost))) + dec = ist->dec_ctx; + if (dec && dec->subtitle_header) { + /* ASS code assumes this buffer is null terminated so add extra byte. */ + ost->enc_ctx->subtitle_header = av_mallocz(dec->subtitle_header_size + 1); + if (!ost->enc_ctx->subtitle_header) { + ret = AVERROR(ENOMEM); + goto dump_format; + } + memcpy(ost->enc_ctx->subtitle_header, dec->subtitle_header, dec->subtitle_header_size); + ost->enc_ctx->subtitle_header_size = dec->subtitle_header_size; + } + if (!av_dict_get(ost->encoder_opts, "threads", NULL, 0)) + av_dict_set(&ost->encoder_opts, "threads", "auto", 0); + av_dict_set(&ost->encoder_opts, "side_data_only_packets", "1", 0); + + if ((ret = avcodec_open2(ost->enc_ctx, codec, &ost->encoder_opts)) < 0) { + if (ret == AVERROR_EXPERIMENTAL) + abort_codec_experimental(codec, 1); + snprintf(error, sizeof(error), "Error while opening encoder for output stream #%d:%d - maybe incorrect parameters such as bit_rate, rate, width or height", + ost->file_index, ost->index); + goto dump_format; + } + if (ost->enc->type == AVMEDIA_TYPE_AUDIO && + !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)) + av_buffersink_set_frame_size(ost->filter->filter, + ost->enc_ctx->frame_size); + assert_avoptions(ost->encoder_opts); + if (ost->enc_ctx->bit_rate && ost->enc_ctx->bit_rate < 1000) + av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low." + " It takes bits/s as argument, not kbits/s\n"); + } else { + if (av_opt_set_dict(ost->enc_ctx, &ost->encoder_opts) < 0) { + av_log(NULL, AV_LOG_FATAL, + "Error setting up codec context options.\n"); + exit_program(1); + } + } + + ret = avcodec_copy_context(ost->st->codec, ost->enc_ctx); + if (ret < 0) { + av_log(NULL, AV_LOG_FATAL, + "Error initializing the output stream codec context.\n"); + exit_program(1); + } + ost->st->codec->codec= ost->enc_ctx->codec; + + // copy timebase while removing common factors + ost->st->time_base = av_add_q(ost->enc_ctx->time_base, (AVRational){0, 1}); + } + + /* init input streams */ + for (i = 0; i < nb_input_streams; i++) + if ((ret = init_input_stream(i, error, sizeof(error))) < 0) { + for (i = 0; i < nb_output_streams; i++) { + ost = output_streams[i]; + avcodec_close(ost->enc_ctx); + } + goto dump_format; + } + + /* discard unused programs */ + for (i = 0; i < nb_input_files; i++) { + InputFile *ifile = input_files[i]; + for (j = 0; j < ifile->ctx->nb_programs; j++) { + AVProgram *p = ifile->ctx->programs[j]; + int discard = AVDISCARD_ALL; + + for (k = 0; k < p->nb_stream_indexes; k++) + if (!input_streams[ifile->ist_index + p->stream_index[k]]->discard) { + discard = AVDISCARD_DEFAULT; + break; + } + p->discard = discard; + } + } + + /* open files and write file headers */ + for (i = 0; i < nb_output_files; i++) { + oc = output_files[i]->ctx; + oc->interrupt_callback = int_cb; + if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) { + snprintf(error, sizeof(error), + "Could not write header for output file #%d " + "(incorrect codec parameters ?): %s", + i, av_err2str(ret)); + ret = AVERROR(EINVAL); + goto dump_format; + } +// assert_avoptions(output_files[i]->opts); + if (strcmp(oc->oformat->name, "rtp")) { + want_sdp = 0; + } + } + + dump_format: + /* dump the file output parameters - cannot be done before in case + of stream copy */ + for (i = 0; i < nb_output_files; i++) { + av_dump_format(output_files[i]->ctx, i, output_files[i]->ctx->filename, 1); + } + + /* dump the stream mapping */ + av_log(NULL, AV_LOG_INFO, "Stream mapping:\n"); + for (i = 0; i < nb_input_streams; i++) { + ist = input_streams[i]; + + for (j = 0; j < ist->nb_filters; j++) { + if (ist->filters[j]->graph->graph_desc) { + av_log(NULL, AV_LOG_INFO, " Stream #%d:%d (%s) -> %s", + ist->file_index, ist->st->index, ist->dec ? ist->dec->name : "?", + ist->filters[j]->name); + if (nb_filtergraphs > 1) + av_log(NULL, AV_LOG_INFO, " (graph %d)", ist->filters[j]->graph->index); + av_log(NULL, AV_LOG_INFO, "\n"); + } + } + } + + for (i = 0; i < nb_output_streams; i++) { + ost = output_streams[i]; + + if (ost->attachment_filename) { + /* an attached file */ + av_log(NULL, AV_LOG_INFO, " File %s -> Stream #%d:%d\n", + ost->attachment_filename, ost->file_index, ost->index); + continue; + } + + if (ost->filter && ost->filter->graph->graph_desc) { + /* output from a complex graph */ + av_log(NULL, AV_LOG_INFO, " %s", ost->filter->name); + if (nb_filtergraphs > 1) + av_log(NULL, AV_LOG_INFO, " (graph %d)", ost->filter->graph->index); + + av_log(NULL, AV_LOG_INFO, " -> Stream #%d:%d (%s)\n", ost->file_index, + ost->index, ost->enc ? ost->enc->name : "?"); + continue; + } + + av_log(NULL, AV_LOG_INFO, " Stream #%d:%d -> #%d:%d", + input_streams[ost->source_index]->file_index, + input_streams[ost->source_index]->st->index, + ost->file_index, + ost->index); + if (ost->sync_ist != input_streams[ost->source_index]) + av_log(NULL, AV_LOG_INFO, " [sync #%d:%d]", + ost->sync_ist->file_index, + ost->sync_ist->st->index); + if (ost->stream_copy) + av_log(NULL, AV_LOG_INFO, " (copy)"); + else { + const AVCodec *in_codec = input_streams[ost->source_index]->dec; + const AVCodec *out_codec = ost->enc; + const char *decoder_name = "?"; + const char *in_codec_name = "?"; + const char *encoder_name = "?"; + const char *out_codec_name = "?"; + + if (in_codec) { + decoder_name = in_codec->name; + in_codec_name = avcodec_descriptor_get(in_codec->id)->name; + if (!strcmp(decoder_name, in_codec_name)) + decoder_name = "native"; + } + + if (out_codec) { + encoder_name = out_codec->name; + out_codec_name = avcodec_descriptor_get(out_codec->id)->name; + if (!strcmp(encoder_name, out_codec_name)) + encoder_name = "native"; + } + + av_log(NULL, AV_LOG_INFO, " (%s (%s) -> %s (%s))", + in_codec_name, decoder_name, + out_codec_name, encoder_name); + } + av_log(NULL, AV_LOG_INFO, "\n"); + } + + if (ret) { + av_log(NULL, AV_LOG_ERROR, "%s\n", error); + return ret; + } + + if (want_sdp) { + print_sdp(); + } + + transcode_init_done = 1; + + return 0; +} + +/* Return 1 if there remain streams where more output is wanted, 0 otherwise. */ +static int need_output(void) +{ + int i; + + for (i = 0; i < nb_output_streams; i++) { + OutputStream *ost = output_streams[i]; + OutputFile *of = output_files[ost->file_index]; + AVFormatContext *os = output_files[ost->file_index]->ctx; + + if (ost->finished || + (os->pb && avio_tell(os->pb) >= of->limit_filesize)) + continue; + if (ost->frame_number >= ost->max_frames) { + int j; + for (j = 0; j < of->ctx->nb_streams; j++) + close_output_stream(output_streams[of->ost_index + j]); + continue; + } + + return 1; + } + + return 0; +} + +/** + * Select the output stream to process. + * + * @return selected output stream, or NULL if none available + */ +static OutputStream *choose_output(void) +{ + int i; + int64_t opts_min = INT64_MAX; + OutputStream *ost_min = NULL; + + for (i = 0; i < nb_output_streams; i++) { + OutputStream *ost = output_streams[i]; + int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base, + AV_TIME_BASE_Q); + if (!ost->unavailable && !ost->finished && opts < opts_min) { + opts_min = opts; + ost_min = ost; + } + } + return ost_min; +} + +static int check_keyboard_interaction(int64_t cur_time) +{ + int i, ret, key; + static int64_t last_time; + if (received_nb_signals) + return AVERROR_EXIT; + /* read_key() returns 0 on EOF */ + if(cur_time - last_time >= 100000 && !run_as_daemon){ + key = read_key(); + last_time = cur_time; + }else + key = -1; + if (key == 'q') + return AVERROR_EXIT; + if (key == '+') av_log_set_level(av_log_get_level()+10); + if (key == '-') av_log_set_level(av_log_get_level()-10); + if (key == 's') qp_hist ^= 1; + if (key == 'h'){ + if (do_hex_dump){ + do_hex_dump = do_pkt_dump = 0; + } else if(do_pkt_dump){ + do_hex_dump = 1; + } else + do_pkt_dump = 1; + av_log_set_level(AV_LOG_DEBUG); + } + if (key == 'c' || key == 'C'){ + char buf[4096], target[64], command[256], arg[256] = {0}; + double time; + int k, n = 0; + fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n"); + i = 0; + while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1) + if (k > 0) + buf[i++] = k; + buf[i] = 0; + if (k > 0 && + (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) { + av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s", + target, time, command, arg); + for (i = 0; i < nb_filtergraphs; i++) { + FilterGraph *fg = filtergraphs[i]; + if (fg->graph) { + if (time < 0) { + ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf), + key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0); + fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf); + } else if (key == 'c') { + fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n"); + ret = AVERROR_PATCHWELCOME; + } else { + ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time); + } + } + } + } else { + av_log(NULL, AV_LOG_ERROR, + "Parse error, at least 3 arguments were expected, " + "only %d given in string '%s'\n", n, buf); + } + } + if (key == 'd' || key == 'D'){ + int debug=0; + if(key == 'D') { + debug = input_streams[0]->st->codec->debug<<1; + if(!debug) debug = 1; + while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash + debug += debug; + }else + if(scanf("%d", &debug)!=1) + fprintf(stderr,"error parsing debug value\n"); + for(i=0;i<nb_input_streams;i++) { + input_streams[i]->st->codec->debug = debug; + } + for(i=0;i<nb_output_streams;i++) { + OutputStream *ost = output_streams[i]; + ost->enc_ctx->debug = debug; + } + if(debug) av_log_set_level(AV_LOG_DEBUG); + fprintf(stderr,"debug=%d\n", debug); + } + if (key == '?'){ + fprintf(stderr, "key function\n" + "? show this help\n" + "+ increase verbosity\n" + "- decrease verbosity\n" + "c Send command to first matching filter supporting it\n" + "C Send/Que command to all matching filters\n" + "D cycle through available debug modes\n" + "h dump packets/hex press to cycle through the 3 states\n" + "q quit\n" + "s Show QP histogram\n" + ); + } + return 0; +} + +#if HAVE_PTHREADS +static void *input_thread(void *arg) +{ + InputFile *f = arg; + int ret = 0; + + while (1) { + AVPacket pkt; + ret = av_read_frame(f->ctx, &pkt); + + if (ret == AVERROR(EAGAIN)) { + av_usleep(10000); + continue; + } + if (ret < 0) { + av_thread_message_queue_set_err_recv(f->in_thread_queue, ret); + break; + } + av_dup_packet(&pkt); + ret = av_thread_message_queue_send(f->in_thread_queue, &pkt, 0); + if (ret < 0) { + if (ret != AVERROR_EOF) + av_log(f->ctx, AV_LOG_ERROR, + "Unable to send packet to main thread: %s\n", + av_err2str(ret)); + av_free_packet(&pkt); + av_thread_message_queue_set_err_recv(f->in_thread_queue, ret); + break; + } + } + + return NULL; +} + +static void free_input_threads(void) +{ + int i; + + for (i = 0; i < nb_input_files; i++) { + InputFile *f = input_files[i]; + AVPacket pkt; + + if (!f->in_thread_queue) + continue; + av_thread_message_queue_set_err_send(f->in_thread_queue, AVERROR_EOF); + while (av_thread_message_queue_recv(f->in_thread_queue, &pkt, 0) >= 0) + av_free_packet(&pkt); + + pthread_join(f->thread, NULL); + f->joined = 1; + av_thread_message_queue_free(&f->in_thread_queue); + } +} + +static int init_input_threads(void) +{ + int i, ret; + + if (nb_input_files == 1) + return 0; + + for (i = 0; i < nb_input_files; i++) { + InputFile *f = input_files[i]; + + if (f->ctx->pb ? !f->ctx->pb->seekable : + strcmp(f->ctx->iformat->name, "lavfi")) + f->non_blocking = 1; + ret = av_thread_message_queue_alloc(&f->in_thread_queue, + 8, sizeof(AVPacket)); + if (ret < 0) + return ret; + + if ((ret = pthread_create(&f->thread, NULL, input_thread, f))) { + av_log(NULL, AV_LOG_ERROR, "pthread_create failed: %s. Try to increase `ulimit -v` or decrease `ulimit -s`.\n", strerror(ret)); + av_thread_message_queue_free(&f->in_thread_queue); + return AVERROR(ret); + } + } + return 0; +} + +static int get_input_packet_mt(InputFile *f, AVPacket *pkt) +{ + return av_thread_message_queue_recv(f->in_thread_queue, pkt, + f->non_blocking ? + AV_THREAD_MESSAGE_NONBLOCK : 0); +} +#endif + +static int get_input_packet(InputFile *f, AVPacket *pkt) +{ + if (f->rate_emu) { + int i; + for (i = 0; i < f->nb_streams; i++) { + InputStream *ist = input_streams[f->ist_index + i]; + int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE); + int64_t now = av_gettime_relative() - ist->start; + if (pts > now) + return AVERROR(EAGAIN); + } + } + +#if HAVE_PTHREADS + if (nb_input_files > 1) + return get_input_packet_mt(f, pkt); +#endif + return av_read_frame(f->ctx, pkt); +} + +static int got_eagain(void) +{ + int i; + for (i = 0; i < nb_output_streams; i++) + if (output_streams[i]->unavailable) + return 1; + return 0; +} + +static void reset_eagain(void) +{ + int i; + for (i = 0; i < nb_input_files; i++) + input_files[i]->eagain = 0; + for (i = 0; i < nb_output_streams; i++) + output_streams[i]->unavailable = 0; +} + +/* + * Return + * - 0 -- one packet was read and processed + * - AVERROR(EAGAIN) -- no packets were available for selected file, + * this function should be called again + * - AVERROR_EOF -- this function should not be called again + */ +static int process_input(int file_index) +{ + InputFile *ifile = input_files[file_index]; + AVFormatContext *is; + InputStream *ist; + AVPacket pkt; + int ret, i, j; + + is = ifile->ctx; + ret = get_input_packet(ifile, &pkt); + + if (ret == AVERROR(EAGAIN)) { + ifile->eagain = 1; + return ret; + } + if (ret < 0) { + if (ret != AVERROR_EOF) { + print_error(is->filename, ret); + if (exit_on_error) + exit_program(1); + } + + for (i = 0; i < ifile->nb_streams; i++) { + ist = input_streams[ifile->ist_index + i]; + if (ist->decoding_needed) { + ret = process_input_packet(ist, NULL); + if (ret>0) + return 0; + } + + /* mark all outputs that don't go through lavfi as finished */ + for (j = 0; j < nb_output_streams; j++) { + OutputStream *ost = output_streams[j]; + + if (ost->source_index == ifile->ist_index + i && + (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE)) + finish_output_stream(ost); + } + } + + ifile->eof_reached = 1; + return AVERROR(EAGAIN); + } + + reset_eagain(); + + if (do_pkt_dump) { + av_pkt_dump_log2(NULL, AV_LOG_DEBUG, &pkt, do_hex_dump, + is->streams[pkt.stream_index]); + } + /* the following test is needed in case new streams appear + dynamically in stream : we ignore them */ + if (pkt.stream_index >= ifile->nb_streams) { + report_new_stream(file_index, &pkt); + goto discard_packet; + } + + ist = input_streams[ifile->ist_index + pkt.stream_index]; + + ist->data_size += pkt.size; + ist->nb_packets++; + + if (ist->discard) + goto discard_packet; + + if (debug_ts) { + av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s " + "next_dts:%s next_dts_time:%s next_pts:%s next_pts_time:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%s off_time:%s\n", + ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->dec_ctx->codec_type), + av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q), + av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q), + av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base), + av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base), + av_ts2str(input_files[ist->file_index]->ts_offset), + av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q)); + } + + if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){ + int64_t stime, stime2; + // Correcting starttime based on the enabled streams + // FIXME this ideally should be done before the first use of starttime but we do not know which are the enabled streams at that point. + // so we instead do it here as part of discontinuity handling + if ( ist->next_dts == AV_NOPTS_VALUE + && ifile->ts_offset == -is->start_time + && (is->iformat->flags & AVFMT_TS_DISCONT)) { + int64_t new_start_time = INT64_MAX; + for (i=0; i<is->nb_streams; i++) { + AVStream *st = is->streams[i]; + if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE) + continue; + new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q)); + } + if (new_start_time > is->start_time) { + av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time); + ifile->ts_offset = -new_start_time; + } + } + + stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base); + stime2= stime + (1ULL<<ist->st->pts_wrap_bits); + ist->wrap_correction_done = 1; + + if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) { + pkt.dts -= 1ULL<<ist->st->pts_wrap_bits; + ist->wrap_correction_done = 0; + } + if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) { + pkt.pts -= 1ULL<<ist->st->pts_wrap_bits; + ist->wrap_correction_done = 0; + } + } + + /* add the stream-global side data to the first packet */ + if (ist->nb_packets == 1) { + if (ist->st->nb_side_data) + av_packet_split_side_data(&pkt); + for (i = 0; i < ist->st->nb_side_data; i++) { + AVPacketSideData *src_sd = &ist->st->side_data[i]; + uint8_t *dst_data; + + if (av_packet_get_side_data(&pkt, src_sd->type, NULL)) + continue; + + dst_data = av_packet_new_side_data(&pkt, src_sd->type, src_sd->size); + if (!dst_data) + exit_program(1); + + memcpy(dst_data, src_sd->data, src_sd->size); + } + } + + if (pkt.dts != AV_NOPTS_VALUE) + pkt.dts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base); + if (pkt.pts != AV_NOPTS_VALUE) + pkt.pts += av_rescale_q(ifile->ts_offset, AV_TIME_BASE_Q, ist->st->time_base); + + if (pkt.pts != AV_NOPTS_VALUE) + pkt.pts *= ist->ts_scale; + if (pkt.dts != AV_NOPTS_VALUE) + pkt.dts *= ist->ts_scale; + + if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO || + ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) && + pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts + && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) { + int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q); + int64_t delta = pkt_dts - ifile->last_ts; + if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE || + delta > 1LL*dts_delta_threshold*AV_TIME_BASE){ + ifile->ts_offset -= delta; + av_log(NULL, AV_LOG_DEBUG, + "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", + delta, ifile->ts_offset); + pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base); + if (pkt.pts != AV_NOPTS_VALUE) + pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base); + } + } + + if ((ist->dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO || + ist->dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) && + pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE && + !copy_ts) { + int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q); + int64_t delta = pkt_dts - ist->next_dts; + if (is->iformat->flags & AVFMT_TS_DISCONT) { + if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE || + delta > 1LL*dts_delta_threshold*AV_TIME_BASE || + pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) { + ifile->ts_offset -= delta; + av_log(NULL, AV_LOG_DEBUG, + "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n", + delta, ifile->ts_offset); + pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base); + if (pkt.pts != AV_NOPTS_VALUE) + pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base); + } + } else { + if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE || + delta > 1LL*dts_error_threshold*AV_TIME_BASE) { + av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index); + pkt.dts = AV_NOPTS_VALUE; + } + if (pkt.pts != AV_NOPTS_VALUE){ + int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q); + delta = pkt_pts - ist->next_dts; + if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE || + delta > 1LL*dts_error_threshold*AV_TIME_BASE) { + av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index); + pkt.pts = AV_NOPTS_VALUE; + } + } + } + } + + if (pkt.dts != AV_NOPTS_VALUE) + ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q); + + if (debug_ts) { + av_log(NULL, AV_LOG_INFO, "demuxer+ffmpeg -> ist_index:%d type:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%s off_time:%s\n", + ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->dec_ctx->codec_type), + av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base), + av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base), + av_ts2str(input_files[ist->file_index]->ts_offset), + av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q)); + } + + sub2video_heartbeat(ist, pkt.pts); + + ret = process_input_packet(ist, &pkt); + if (ret < 0) { + av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n", + ist->file_index, ist->st->index, av_err2str(ret)); + if (exit_on_error) + exit_program(1); + } + +discard_packet: + av_free_packet(&pkt); + + return 0; +} + +/** + * Perform a step of transcoding for the specified filter graph. + * + * @param[in] graph filter graph to consider + * @param[out] best_ist input stream where a frame would allow to continue + * @return 0 for success, <0 for error + */ +static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist) +{ + int i, ret; + int nb_requests, nb_requests_max = 0; + InputFilter *ifilter; + InputStream *ist; + + *best_ist = NULL; + ret = avfilter_graph_request_oldest(graph->graph); + if (ret >= 0) + return reap_filters(); + + if (ret == AVERROR_EOF) { + ret = reap_filters(); + for (i = 0; i < graph->nb_outputs; i++) + close_output_stream(graph->outputs[i]->ost); + return ret; + } + if (ret != AVERROR(EAGAIN)) + return ret; + + for (i = 0; i < graph->nb_inputs; i++) { + ifilter = graph->inputs[i]; + ist = ifilter->ist; + if (input_files[ist->file_index]->eagain || + input_files[ist->file_index]->eof_reached) + continue; + nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter); + if (nb_requests > nb_requests_max) { + nb_requests_max = nb_requests; + *best_ist = ist; + } + } + + if (!*best_ist) + for (i = 0; i < graph->nb_outputs; i++) + graph->outputs[i]->ost->unavailable = 1; + + return 0; +} + +/** + * Run a single step of transcoding. + * + * @return 0 for success, <0 for error + */ +static int transcode_step(void) +{ + OutputStream *ost; + InputStream *ist; + int ret; + + ost = choose_output(); + if (!ost) { + if (got_eagain()) { + reset_eagain(); + av_usleep(10000); + return 0; + } + av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n"); + return AVERROR_EOF; + } + + if (ost->filter) { + if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0) + return ret; + if (!ist) + return 0; + } else { + av_assert0(ost->source_index >= 0); + ist = input_streams[ost->source_index]; + } + + ret = process_input(ist->file_index); + if (ret == AVERROR(EAGAIN)) { + if (input_files[ist->file_index]->eagain) + ost->unavailable = 1; + return 0; + } + if (ret < 0) + return ret == AVERROR_EOF ? 0 : ret; + + return reap_filters(); +} + +/* + * The following code is the main loop of the file converter + */ +static int transcode(void) +{ + int ret, i; + AVFormatContext *os; + OutputStream *ost; + InputStream *ist; + int64_t timer_start; + + ret = transcode_init(); + if (ret < 0) + goto fail; + + if (stdin_interaction) { + av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n"); + } + + timer_start = av_gettime_relative(); + +#if HAVE_PTHREADS + if ((ret = init_input_threads()) < 0) + goto fail; +#endif + + while (!received_sigterm) { + int64_t cur_time= av_gettime_relative(); + + /* if 'q' pressed, exits */ + if (stdin_interaction) + if (check_keyboard_interaction(cur_time) < 0) + break; + + /* check if there's any stream where output is still needed */ + if (!need_output()) { + av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n"); + break; + } + + ret = transcode_step(); + if (ret < 0) { + if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN)) + continue; + + av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n"); + break; + } + + /* dump report by using the output first video and audio streams */ + print_report(0, timer_start, cur_time); + } +#if HAVE_PTHREADS + free_input_threads(); +#endif + + /* at the end of stream, we must flush the decoder buffers */ + for (i = 0; i < nb_input_streams; i++) { + ist = input_streams[i]; + if (!input_files[ist->file_index]->eof_reached && ist->decoding_needed) { + process_input_packet(ist, NULL); + } + } + flush_encoders(); + + term_exit(); + + /* write the trailer if needed and close file */ + for (i = 0; i < nb_output_files; i++) { + os = output_files[i]->ctx; + av_write_trailer(os); + } + + /* dump report by using the first video and audio streams */ + print_report(1, timer_start, av_gettime_relative()); + + /* close each encoder */ + for (i = 0; i < nb_output_streams; i++) { + ost = output_streams[i]; + if (ost->encoding_needed) { + av_freep(&ost->enc_ctx->stats_in); + } + } + + /* close each decoder */ + for (i = 0; i < nb_input_streams; i++) { + ist = input_streams[i]; + if (ist->decoding_needed) { + avcodec_close(ist->dec_ctx); + if (ist->hwaccel_uninit) + ist->hwaccel_uninit(ist->dec_ctx); + } + } + + /* finished ! */ + ret = 0; + + fail: +#if HAVE_PTHREADS + free_input_threads(); +#endif + + if (output_streams) { + for (i = 0; i < nb_output_streams; i++) { + ost = output_streams[i]; + if (ost) { + if (ost->logfile) { + fclose(ost->logfile); + ost->logfile = NULL; + } + av_freep(&ost->forced_kf_pts); + av_freep(&ost->apad); + av_dict_free(&ost->encoder_opts); + av_dict_free(&ost->swr_opts); + av_dict_free(&ost->resample_opts); + } + } + } + return ret; +} + + +static int64_t getutime(void) +{ +#if HAVE_GETRUSAGE + struct rusage rusage; + + getrusage(RUSAGE_SELF, &rusage); + return (rusage.ru_utime.tv_sec * 1000000LL) + rusage.ru_utime.tv_usec; +#elif HAVE_GETPROCESSTIMES + HANDLE proc; + FILETIME c, e, k, u; + proc = GetCurrentProcess(); + GetProcessTimes(proc, &c, &e, &k, &u); + return ((int64_t) u.dwHighDateTime << 32 | u.dwLowDateTime) / 10; +#else + return av_gettime(); +#endif +} + +static int64_t getmaxrss(void) +{ +#if HAVE_GETRUSAGE && HAVE_STRUCT_RUSAGE_RU_MAXRSS + struct rusage rusage; + getrusage(RUSAGE_SELF, &rusage); + return (int64_t)rusage.ru_maxrss * 1024; +#elif HAVE_GETPROCESSMEMORYINFO + HANDLE proc; + PROCESS_MEMORY_COUNTERS memcounters; + proc = GetCurrentProcess(); + memcounters.cb = sizeof(memcounters); + GetProcessMemoryInfo(proc, &memcounters, sizeof(memcounters)); + return memcounters.PeakPagefileUsage; +#else + return 0; +#endif +} + +static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl) +{ +} + +int main(int argc, char **argv) +{ + int ret; + int64_t ti; + + register_exit(ffmpeg_cleanup); + + setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */ + + av_log_set_flags(AV_LOG_SKIP_REPEATED); + parse_loglevel(argc, argv, options); + + if(argc>1 && !strcmp(argv[1], "-d")){ + run_as_daemon=1; + av_log_set_callback(log_callback_null); + argc--; + argv++; + } + + avcodec_register_all(); +#if CONFIG_AVDEVICE + avdevice_register_all(); +#endif + avfilter_register_all(); + av_register_all(); + avformat_network_init(); + + show_banner(argc, argv, options); + + term_init(); + + /* parse options and open all input/output files */ + ret = ffmpeg_parse_options(argc, argv); + if (ret < 0) + exit_program(1); + + if (nb_output_files <= 0 && nb_input_files == 0) { + show_usage(); + av_log(NULL, AV_LOG_WARNING, "Use -h to get full help or, even better, run 'man %s'\n", program_name); + exit_program(1); + } + + /* file converter / grab */ + if (nb_output_files <= 0) { + av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n"); + exit_program(1); + } + +// if (nb_input_files == 0) { +// av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n"); +// exit_program(1); +// } + + current_time = ti = getutime(); + if (transcode() < 0) + exit_program(1); + ti = getutime() - ti; + if (do_benchmark) { + printf("bench: utime=%0.3fs\n", ti / 1000000.0); + } + av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n", + decode_error_stat[0], decode_error_stat[1]); + if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1]) + exit_program(69); + + exit_program(received_nb_signals ? 255 : main_return_code); + return main_return_code; +} |
